Michigan 250 (1)
Michigan International Speedway, 16 Sep 1973
|1||Billy Vukovich||Eagle 72 [7207?] - Offy 159 ci turbo
#2 Sugaripe Prune [Jerry O'Connell/Jud Phillips]
(see note 1)
|63||0h 56m 24.410s
|2||Gary Bettenhausen||McLaren M16C  - Offy 159 ci turbo
#5 Sunoco DX [Roger Penske] (see note 2)
|3||Johnny Rutherford||McLaren M16C  - Offy 159 ci turbo
#7 Gulf [McLaren Cars] (see note 3)
|4||Roger McCluskey||McLaren M16B  - Offy 159 ci turbo
#3 Hopkins Buick [Lindsey Hopkins]
(see note 4)
|5||Mario Andretti||Parnelli VPJ-2 [102?] - Offy 159 ci turbo
#11 Viceroy [Vel's Parnelli Jones Racing]
|6||Lloyd Ruby||Eagle 72  - Offy 159 ci turbo
#18 Commander Motor Homes [Mike Slater]
(see note 5)
|7||Steve Krisiloff||Kingfish 73 ['1'] - Offy 159 ci turbo
#24 Tecumseh Comm Mutual Fund [Grant King Racers]
(see note 6)
|8||Jimmy Caruthers||Eagle 72 - Offy 159 ci turbo
#21 Cobre Firestone [Robert L. 'Bob' Fletcher]
(see note 7)
|9||Mike Hiss||Eagle 72 [7216?] - Offy 159 ci turbo
#6 Thermo King Air Cond [Don Gerhardt]
(see note 8)
|10||Bobby Unser||Eagle 73 [7304?] - Offy 159 ci turbo
#8 Olsonite [AAR] (see note 9)
|11||Johnny Parsons Jr||Eagle 72  - Offy 159 ci turbo
#97 Lodestar [Agajanian/Leader Card]
(see note 10)
|12||Joe Leonard||Parnelli VPJ-2 - Offy 159 ci turbo
#1 Samsonite [Vel's Parnelli Jones Racing]
|13||AJ Foyt||Coyote 73 ['73-2'] - Foyt-Ford 159 ci quad cam turbo V8
#14 Gilmore Racing [Foyt Enterprises]
(see note 11)
|14||John Hubbard||Finley 73 - Offy 159 ci turbo
#94 Two Jacks Flyer [Vatis] (see note 12)
|15||Lee Brayton||Eagle 72  - Offy 159 ci turbo
#61 Eisenhour-Brayton [Lee Brayton and John Eisenhour]
(see note 13)
|16||Larry Cannon||Eagle 70  - Offy 159 ci turbo
#59 PEP Gas Treatment [Hoffman Racing]
(see note 14)
|17||Gordon Johncock||Eagle 73  - Offy 159 ci turbo
#20 STP Double Oil Filter [Patrick Racing]
(see note 15)
|18||Mike Mosley||Eagle 72  - Offy 159 ci turbo
#98 Lodestar [Agajanian/Leader Card]
(see note 16)
|19||Al Loquasto||McLaren M16B  - Offy 159 ci turbo
#86 Martin Guitar [Al Loquasto]
(see note 17)
|20||Lee Kunzman||Eagle 73  - Offy 159 ci turbo
#55 Cobre Firestone [Robert L. 'Bob' Fletcher]
(see note 18)
|21||Al Unser||Parnelli VPJ-2 [101?] - Offy 159 ci turbo
#4 Viceroy [Vel's Parnelli Jones Racing]
|22||Larry McCoy||Atlanta 72 - Offy 159 ci turbo
#63 Eastern Racing Associates [Larry McCoy]
(see note 19)
|23||Wally Dallenbach||Eagle 72  - Offy 159 ci turbo
#40 STP Oil Treatment [Patrick Racing]
(see note 20)
|24||Jigger Sirois||Mongoose 71 - Ford 159 ci quad cam turbo V8
#51 Minnesota Serendipity [Pat O'Reilly]
(see note 21)
|0||Did not start|
|DNS||Bentley Warren||Eagle 72  - Offy 159 ci turbo
#16 Hopkins [Lindsey Hopkins/Duane Glasgow]
(see note 22)
|Did not start
|DNS||Mel Kenyon||Eagle 72  - Foyt-Ford 159 ci quad cam turbo V8
#19 Hopkins [Lindsey Hopkins/Don Kenyon]
(see note 23)
|Did not start
(Blew engine practice)
|DNS||Rick Muther||Eagle 72  - Chevrolet 203 ci turbo Crower V8
#23 Crower Cams [Bruce H. Crower]
(see note 24)
|Did not start
(Broken fuel pump)
|DNS||Dick Simon||Eagle 73  - Ford 159 ci quad cam turbo V8
#60 (see note 25)
|Did not start|
|DNQ||Benny Rapp||Cecil 69 - Ford Cleveland stock block V8
#71 Gifford [Lloyd W. Gifford] (see note 26)
|Did not qualify|
|1||Gordon Johncock||Eagle 73  - Offy 159 ci turbo||204.545 mph|
|2||Johnny Rutherford||McLaren M16C  - Offy 159 ci turbo||203.046 mph|
|3||Roger McCluskey||McLaren M16B  - Offy 159 ci turbo||202.589 mph|
|4||Mike Mosley||Eagle 72  - Offy 159 ci turbo||201.907 mph|
|5||Bobby Unser||Eagle 73 [7304?] - Offy 159 ci turbo||201.737 mph|
|6||Al Unser||Parnelli VPJ-2 [101?] - Offy 159 ci turbo||201.117 mph|
|7||Lee Kunzman||Eagle 73  - Offy 159 ci turbo||201.117 mph|
|8||Mario Andretti||Parnelli VPJ-2 [102?] - Offy 159 ci turbo||200.781 mph|
|9||Joe Leonard||Parnelli VPJ-2 - Offy 159 ci turbo||200.501 mph|
|10||Wally Dallenbach||Eagle 72  - Offy 159 ci turbo||200.445 mph|
|11||Steve Krisiloff||Kingfish 73 ['1'] - Offy 159 ci turbo||199.280 mph|
|12||Lloyd Ruby||Eagle 72  - Offy 159 ci turbo||198.621 mph|
|13||Gary Bettenhausen||McLaren M16C  - Offy 159 ci turbo||198.611 mph|
|14||Dick Simon *||Eagle 73  - Ford 159 ci quad cam turbo V8||197.423 mph|
|15||Billy Vukovich||Eagle 72 [7207?] - Offy 159 ci turbo||196.614 mph|
|16||Johnny Parsons Jr||Eagle 72  - Offy 159 ci turbo||195.440 mph|
|17||Mike Hiss||Eagle 72 [7216?] - Offy 159 ci turbo||192.705 mph|
|18||Lee Brayton||Eagle 72  - Offy 159 ci turbo||187.891 mph|
|19||Al Loquasto||McLaren M16B  - Offy 159 ci turbo||184.237 mph|
|20||Larry McCoy||Atlanta 72 - Offy 159 ci turbo||183.955 mph|
|21||Jigger Sirois||Mongoose 71 - Ford 159 ci quad cam turbo V8||179.641 mph|
|22||John Hubbard||Finley 73 - Offy 159 ci turbo||176.255 mph|
|23||AJ Foyt||Coyote 73 ['73-2'] - Foyt-Ford 159 ci quad cam turbo V8||161.290 mph|
|23||Larry Cannon||Eagle 70  - Offy 159 ci turbo||174.800 mph|
|-||Jimmy Caruthers||Eagle 72 - Offy 159 ci turbo|
|-||Mel Kenyon *||Eagle 72  - Foyt-Ford 159 ci quad cam turbo V8|
|-||Bentley Warren *||Eagle 72  - Offy 159 ci turbo|
|-||Rick Muther *||Eagle 72  - Chevrolet 203 ci turbo Crower V8|
|-||Benny Rapp *||Cecil 69 - Ford Cleveland stock block V8|
|* Did not start|
Notes on the cars:
- Eagle 72 [7207?] (Billy Vukovich): One of two 1972 Eagles, the other being 7204, bought new by Jerry O'Connell's Sugaripe Prune team and raced by Billy Vukovich as the #3 entry in 1972, with Jud Phillips as chief mechanic. This car can be identified from an invoice later in its life so is known to Vukovich's backup car at the 1972 Indy 500 (entered as #32 but ran as #3 and crashed during practice) and then became his long track car later in the season. Finished second at the 1973 Indy 500 and won at Michigan the following August. The team then bought a 1974 Eagle and sold 7204 but kept this car as a backup for three more seasons. Sold to Arthur E. 'Art' Sugai (Ontario, OR) for 1977 and entered as the #91 Eastside Café car that season, alongside the ex-Penske 7225. Sold with 7225 to collector/dealer Chuck Haines (St Louis, MO) in May 1980 and fully restored to 1972 specification by Walter Goodwin of Race Car Restorations. On display for many years at the "International Motorsports Hall of Fame", a NASCAR museum at Talladega Speedway in Alabama.
- McLaren M16C  (Gary Bettenhausen): To Roger Penske for Gary Bettenhausen to drive during the 1973 season as the #5 Sunoco DX car, and used by him at all races that season. Entered for Mike Hiss as the #68 Norton Spirit entry at Indianapolis and Michigan in 1974. Then the #16 CAM2 Motor Oil entry for Bobby Allison at four long-track races in 1975. Then raced by Mario Andretti for Penske as the #6 in 1976 at the Indy 500 and Pocono. Sold to Bill Simpson later in 1976 (still as #6) together with M16C/4. It then became part of Teddy Yip's Theodore Racing team in 1977 as their #39 but was crashed very heavily by Clay Regazzoni in Indy practice. The wrecked car was cubed by Yip.
- McLaren M16C  (Johnny Rutherford): New for McLaren Cars to be driven by Johnny Rutherford as the #7 Gulf entry in 1973. He used this car at the Indy 500 but may have used M16C/2 (or even M16C/4) at other races that season. Raced again by Rutherford in 1974 as the #3 car, winning the Indy 500, but he used another M16C at short track events that year. This car then became Rutherford's short-track car in 1975 and 1976. Sold to George Walther to be Salt Walther #33 backup car at Indy in 1977 but how it was used that season is unknown. Entered by Walther at the 1978 Indy 500 as the #34 for Graham McRae but he was bumped. Sold by Walther to Rick Carroll (Jensen Beach, FL) and restored. Sold by Carroll's estate in 1990 via Sotherby's Palm Springs Auction for $495,000 to Patrick S. Ryan (Montgomery, AL). Loaned by Ryan to the IMS Museum but also attended various concours events while owned by Ryan. Repainted by Paintergeek Paintworks (Indianapolis, IN) in May 2013. Sold by Ryan through RM Auctions at Monterey in August 2013 for $3,250,000 to web entrepreneur Bill Oesterle (Indianapolis, IN).
- McLaren M16B  (Roger McCluskey): McLaren Cars 1972 for Peter Revson (#12), and raced at the Indy 500, Pocono and Ontario. Also raced by Gordie Johncock at Trenton in September after his usual M16B/3 had been wrecked at Ontario. To Lindsey Hopkins for Roger McCluskey to race in 1973 as the #3 Hopkins Buick entry, but McCluskey raced his older M16A at the Indy 500 and at Pocono, before settling on the M16B at the end of the season. The two cars took McCluskey to the USAC National Championship. The M16B was retained for 1974 and 1975 as a backup to Hopkins' new Riley-built 'English Leather' car. The McLaren was used at Trenton in 1975, and then entered for Graham McRae at the 1975 Indy 500, but he could not qualify. Sold to Carl Gehlhausen for Spike Gehlhausen to drive in 1976 (#19 Spirit of Indiana) and 1977 (#19 PV Corp) but crashed at Ontario, Indy and Pocono in 1977 with serious damage each time. Replaced with an Eagle in mid-1977. Acquired from Gehlhausen by Chuck Haines (St Louis, MO) some time in the 1980s, and restored by Gehlhausen's chief mechanic Eddie Baue and Walter Goodwin. USAC's history of this car identified it as the #86 "ex-Revson" McLaren (actually Hopkins' other M16) and it was restored to this specification and then sold to Gene Wagner (Atlanta, GA), who used it in US vintage racing between 1988 and 1990.
- Eagle 72  (Lloyd Ruby): Supplied as a monocoque to Lloyd Ruby and his chief crew Mike Devin after Ruby had crashed chassis 7224 at Ontario. Chassis 7228 was built up using the components of 7224 and raced as Ruby's #18 Commander Motor Homes for the rest of the season. Retained in 1974 as a backup car to Ruby's new 1974 Eagle, but actually raced more often than the '74 that season. Sold to Anastassios "Tassi" Vatis, a Greek shipping tycoon and veteran Indy car owner, and run by Vatis's faithful chief mechanic Bill Finley for Johnny Parsons Jr in 1975. In 1976, the team had a "new" car built on an "unused" chassis, presumably 7224 as it still carries the 7224 plate today. However, 7228 remained the main car, Parsons' #93 Ayr-Way/Vatis entry in 1976 and 1977. In 1978, 7228 was modified with straight sidepods and radiators repositioned to the rear of the tub, matching the specification of 7224, after which they are hard to tell apart. John Mahler (Bettendorf, Iowa) bought the Vatis team in November 1978 with the support of longtime backer Richard Deutsch, and it is believed that 7228 was the #92 car that Mahler had bumped after qualifying. Retained as a backup in 1980 and 1981, then sold to Rick DeLorto (Wood Dale, IL) who attempted to qualify for several CART races in 1982. Then to John Griffith (Chicago, IL) 1983, then Steve Burgner (Chicago, IL) 1984, after which it was sold to Mountain View Motorsport Park in Colorado. It then passed to a dealer in Connecticut, from which Eric Camiel (Danbury, CT) bought it in 1991. Then unknown until acquired from Chuck Haines (St Louis, MO) by John Mueller (Fresno, CA) in late 2005. Chuck is believed to have got it from Lilo Zicron (Burbank, CA). Extensively rebuilt by Mueller to standard specification. Sold to Rick and Alison Dresang (Hartford, WI) in May 2016.
- Kingfish 73 ['1'] (Steve Krisiloff): Built by Grant King for Steve Krisiloff to drive in 1973 as the #24 Grant King Racing entry, acquiring many different sponsors during the season. This car started the season red but was repainted blue-and-yellow after qualifying for the Indy 500. Retained the number #24 for 1974 but now driven by Tom Sneva, scoring a fifth place finish at Michigan in September 1974. Retained by the team for 1975 and raced by Bentley Warren at the Indy 500 but crashed in the rain and was very badly damaged. Parts of the car were used to build up a new chassis and what was left of the car remained with its 1973 sister car until both were sold as a project on race-cars.com in 2009 to Rick and Jacques Dresang (Hartford, WI).
- Eagle 72 (Jimmy Caruthers): One of two 1972 Eagles bought by Robert L. 'Bob' Fletcher and chief crew Clint Brawner for Fletcher's new Cobre Firestone team in 1973. This car arrived in time for the race at Texas World Speedway at the start of April so is likely to be chassis 7214. Entered at TWS as the #21 entry for Jimmy Caruthers, and it is assumed that this was the same #21 entered for him at Trenton and at the Indy 500. After Art Pollard's accident in the sister car, this was Fletcher's only remaining 1972 car and it was driven by Caruthers for the rest of 1973, then by Duane "Pancho" Carter at the Indy 500 in 1974. It is likely to be the car raced by Carter later in the season but he might have been allocated one of the team's 1974 Eagles. The car was renumbered #55 for 1975 and entered for Lee Kunzman at Ontario, where he finished third in his heat and fourth in the final. Entered also at the Indy 500 but Kunzman did not qualify. The car was not needed again but remained with the team as a show car. It was photographed in Frosty Acres livery, which cannot be earlier than 1979. Subsequent history unknown.
- Eagle 72 [7216?] (Mike Hiss): Built in the fall of 1972 as one of the two replacement Thermo King/Gerhardt cars after Malloy's crash at Indy in 1972. Used by Mike Hiss in the 1973 500 as the #6 car; then the #46 car used by Jim McElreath in practice in 1974; then the #46 car used by Rick Muther and Jan Opperman in practice in 1975; then the #45 car qualified by Gary Bettenhausen in 1976. After Eddie Miller wrecked the sister Gerhardt Eagle (7209) at Indy in 1976, 7216 was driven by Bettenhausen and Steve Krisiloff for the rest of 1976. Sold by Fred Gerhardt to Gary Howard when Gerhardt stopped racing but not raced by Howard, and sold to Bob Featherly (East Syracuse, NY) about 1980/81.
- Eagle 73 [7304?] (Bobby Unser): New for Bobby Unser at the 1973 Indy 500, as AAR's #8 Olsonite entry. Unser qualified second but retired at mid-distance. He then drove the same car at Milwaukee in June, winning from pole position. The car Jerry Grant had raced at the Indy 500 was sold to Patrick Racing, leaving Unser with 7302 and the new 7304. Exactly how these cars were used in 1973 is still being resolved but, for now, it is assumed that 7302 was the car he heavily damaged at Milwaukee in August, leaving him with just chassis 7304 to the end of the season. In the final race, at Phoenix in November, Unser destroyed his car in a massive accident. Autosport reported that this car was repaired and sold to the VPJ team, but photogarphs show that VPJ had new 1974 cars from the start of the season, so it seems likely that 7304 ended its life at Phoenix.
- Eagle 72  (Johnny Parsons Jr): New to Leader Card Racers in time for the TWS race at the start of 1973. Raced by Mike Mosley as the #98 Leader Card entry. Then taken to the Indy 500 as a backup, renumbered #97, and qualified by Rick Muther. It was then Mosley's short track car, and raced by Muther at Pocono and by Johnny Parsons Jr at Ontario and at the late-season races. Presumably for Parsons again at Ontario in March 1974. Then Mosley's short track car when he wasn't using his new 1974 Eagle. Signs of repairs to the left side of this car allow it to be identified from 1975 onwards. It was raced by George Snider as the #97 at Ontario at the start of 1975, then by Steve Krisiloff in the Indy 500 as the #98 and later in the season as the #98 and then the #10. For 1976, the car was sold to Patrick Santello and was his #65 City of Syracuse or S&M Electric entry that season for Larry Dickson and Lee Kunzman. Then to Gus and Richard Hoffman (Milford, OH) of Hoffman Racing for 1977 and entered for Jerry Grant and later Joe Saldana as the #69. Driven again by Saldana in 1978 and 1979. Also appeared once for Bob Frey in 1980. Reappeared briefly in 1982 when it was entered by George T. Smith's GTS Racing as the #86 Empress Traveler for Al Loquasto. Sold by Smith to Chuck Haines (St Louis, MO) who sold it to Bob Colllings (Boston, MA) in April 1985. Retained by Collings and now forms part of the auto collection in The Collings Foundation (Stow, MA).
- Coyote 73 ['73-2'] (AJ Foyt): New for AJ Foyt at at the 1973 Indy 500 as Foyt Enterprises' #14 Gilmore Racing entry. Photographs show that it was also raced by Foyt as the #14 at Pocono, Michigan in July, Ontario, Michigan again in September, and Trenton in September. It is likely to be the car raced by Foyt at Texas World Speedway in October and by George Snider at Phoenix in November, but this remains unconfirmed. The side-radiator 1973 Coyotes were not seen again after 1973 and were presumably rebuilt into the team's front-radiator 1974 cars.
- Finley 73 (John Hubbard): This car is often described as a Fleagle (e.g. the 1974 Hungness and the 1973 Daily Reports) but the descriptions are sufficiently consistent to be able to pinpoint this as a 1973 car built by Vatis Chief Mechanic Bill Finley (Hungness 1974 p124) as the car used by Parsons at both the 1973 and 1974 Indy 500s. All other references to Finley-Eagles, Finleys and Fleagles wearing #94 in 1973, 1974 and 1975 are presumed to be this same car. In 1975, the Vatis team acquired at old 1972 Eagle which was run as the #93 car with the 1973 Finley retaining the number #94. In 1976, a new Eagle was built on a "spare tub" and took the number #93 after which the 1973 Finley appears to have been retired.
- Eagle 72  (Lee Brayton): New to Patrick Racing and raced by Gordy Johncock in 1973 as the #25 Patrick Racing entry early in 1973 and then became the #20 STP Double Oil Filter Special at the Indy 500 when Patrick Racing picked up STP sponsorship. Johncock won the Indy 500 in this car but it was wrecked at Pocono in July when a wheel came off and then damaged again at Milwaukee in August in an incident with Johnny Rutherford while Johncock was leading the race. The Eagle was repaired, sold to Lee Brayton and John Eisenhour, and raced by Brayton at Michigan in September 1973 as the #61 Eisenhour-Brayton car, replacing the team's 1972 Coyote. Retained for 1974 when it was Brayton's #28 car, also driven by Mike Hiss at Ontario. Wrecked by Brayton at Indianapolis during practice on 7 May when Tom Bigelow spun in front of him, and extensively damaged, the Daily Reports noting that the Eagle was "apparently a complete loss". Brayton had to return to the old Coyote for Pocono and it is not clear whether he raced the Coyote again at Michigan later in the year or whether the Eagle had been repaired. Retained by Lee Brayton and undergoing restoration at Walter Goodwin's workshop in May 2010. In June 2010, it appears that this car was placed in the Indianapolis Motor Speedway Museum, replacing the mueum's replica of Johncock's 1973 Indy 500 winner. Sold to Bruce McCaw around 2012.
- Eagle 70  (Larry Cannon): New to the Jud Phillips half of the Leader Card team for Bobby Unser to race at the 1970 Indy 500. However, Unser preferred his usual 1967 car and the 1970 car was only used in practice. According to a later Hungness yearbook, the car was entered as a spare in 1971 and in 1972 and raced at least once during those three seasons, by Rick Muther in the 1972 California 500. Acquired by Gus and Richard Hoffman (Milford, OH) of Hoffman Racing and entered for Larry Cannon in 1973 as the #59 PEP Gas Treatment Spl. Returned in 1974 and qualified for the 500, now with American Financial Corp backing. Used again in 1975 before the team acquired a newer 1973 Eagle for the 1976 season. Subsequent history unknown but the ex-Unser, ex-Cannon car advertised by Robert Pass (Maryland Heights, MO) in 1992, having been restored by Jim Robinson. Later advertised by Chuck Haines (St Louis, MO) as being chassis 803. The car had been restored to Cannon's 1974 livery.
- Eagle 73  (Gordon Johncock): New for Jerry Grant to race at the 1973 Indy 500 as AAR's #48 Olsonite Eagle. Grant was not entered at the Pocono 500 and the car was sold to Patrick Racing prior to that race. It was raced by Gordy Johncock for the rest of the season as his Indy-winning car was wrecked at Pocono. Raced by teammate Wally Dallenbach in the early races of 1974, then brought to the Indy 500 to replace a '74 car damaged by Johncock in practice. Raced by Johncock at Indy and at Milwaukee in June, and believed to have been his short track car for the rest of the year. Then to Lee Elkins and entered as the #83 McNamara Eagle for Bill Puterbaugh at Indy and at Pocono in 1975, qualifying for both. Retained for the 500-mile races 1976, when Puterbaugh qualified for the Indy 500 and Ontario, and also in 1977 when, now as the #16 entry, he again qualified for the Indy 500. Immediately after qualifying, the car was acquired by George Walther who wanted to put son Salt into it but after an uproar, Puterbaugh drove it in the race. Then from Walther to Bob Olmstead who fitted a Volker V12 engine for Indy 1978 but did not get the car on track. The car was stored until after Olmstead's death, and was sold to Bill Simpson in the early 1990s. It was restored as a show car for Simpson by Wayne Leary and put on display in North Carolina to represent the Eagle that Simpson had raced at Indy. Sold around 2013 to Jeff Urwin (New York, NY).
- Eagle 72  (Mike Mosley): New to Leader Card Racers in time for the 1973 Indy 500 where it was Mike Mosley's #98 Leader Card entry. Raced by Mosley at Pocono and at Ontario, and then at the late-season races. Presumably his car at Ontario in March 1974, after which he used a new 1974 Eagle, and this 1972 Eagle was not seen again in 1974. After the 1974 car was wrecked, this car reappeared for Steve Krisiloff at Ontario in March 1975 as the #98 entry, then for George Snider as the #97 at three more races. Taken to the 1976 Indy 500 as a backup and qualified by Tom Bigelow, and may have been used by Bigelow at some short track races that year as the #24 entry. Although Leader Card now had two 1974 Eagles, this old 1972 car was present at the Indy 500 again in 1977 as the #23 entry but was crashed heavily in practice on 16 May by Gary Irwin and "damaged extensively". Repaired and then acquired by Warner Hodgdon, who had sponsored Mike Hiss in Leader Card's '74 car in 1976. Retained by Hodgdon until his death in 2013, and acquired from the estate by Jeff Urwin (New York, NY). The car was inspected at GE Autosport's shop at Indianapolis in November 2014 by Jacques Dresang, who found traces of Leader Card livery and USAC stickers that tied it to Gary Irwin's 1977 Indy 500 entry.
- McLaren M16B  (Al Loquasto): Roger Penske 1972 for Gary Bettenhausen (#7) at the Indy 500, Michigan and Pocono in July. Raced by Gordon Johncock at Milwaukee in August, again as the #7, and then became Mark Donohue's #66 entry at Trenton and Phoenix. Believed to be Bettenhausen's #5 car at Texas World Speedway in early 1973, after which it was sold to Al Loquasto and was the car he crashed during practice at the Indy 500. Raced by Loquasto for the rest of 1973 and retained in 1974. Unknown thereafter but presumably retained as a backup to his ex-Roy Woods McLaren M16C until 1979 and maybe used on short tracks. Sold with the M16C to Robert W. LaWarre Sr (Titusville, FL) in 1979, and retained by LaWarre until his death in 1997, after which it was sold as a bare tub to Penske in the late 1990s. Penske also obtained from the Goodyear Museum a show car that Penske had built using a replica tub and the bodywork from the 1972 cars. The bodywork and running gear was reunited with the M16B monocoque and restored as a replica of Mark Donohue's Indy 500 winner. The car has been on display in the Penske Racing Museum (Scottsdale, AZ) since 2012 or earlier.
- Eagle 73  (Lee Kunzman): Bob Fletcher team had owned a pair of 1972 Eagles but after Art Pollard's fatal accident at Indy in 1973, Fletcher acquired a new 1973 car which was entered as the #55 Cobre Firestone entry for Lee Kunzman from Ontario in August onwards. Used for the rest of 1973 but then crashed heavily in testing at Ontario in December when Kunzman hit the wall and needed to be taken to hospital. The 1973 Eagle was not seen in Fletcher stable after this and is presumed to have been destroyed.
- Atlanta 72 (Larry McCoy): Completed by Gene White Racing after Atlanta Cars closed, and first seen as the team's #21 Bill Daniels GOP for Cale Yarborough at the 1972 Indy 500. Yarborough was then "asked to step down", and the car was converted from Ford to Offy power for team leader Lloyd Ruby to try in practice at Pocono. It was raced by Jimmy Caruthers as the #52 Wynn's Special at Ontario in September. Almost certainly the Atlanta-Offy sold to Larry McCoy Sr's Eastern Racing for his son Larry McCoy to drive in 1973, backed by James Bidwell's Shurfine Foods. Converted by Eldon Rasmussen to Ras-Car specification for 1974, and raced by McCoy and others up to 1977. To Frank Fiore for 1978, and his #87 Machinists Union entry for Jerry Karl, Phil Threshie and Al Loquasto that season. Then to Buddie Boys, a Calgary trucking magnate, and entered for Bob Harkey at the 1980 Indy 500, but he could not get enough speed out of it. The last that was heard of the car was just before the Milwaukee race, when the engine was said to have blown up during testing.
- Eagle 72  (Wally Dallenbach): New to Patrick Racing for 1973 and identified as their #60 STP entry at the 1973 Indy 500 for Graham McRae. Then became Wally Dallenbach's #40 car after the Indy 500, winning at Milwaukee and Ontario. Sold to Richard Beith (Danville, CA) for 1974 and entered as the #18 American Kids Racer car for Steve Krisiloff and Bill Simpson. Returned in 1975 for George Follmer, now as the #28, but only at Ontario and Indy. Leased from Beith by Warner Hodgdon (San Bernardino, CA) for 1976 and raced by Billy Scott at the Indy 500 before returning to Beith for three more seasons, appearing mainly at the 500-mile races at Ontario and Indianapolis. Retained by Beith until sold to Chuck Haines (St Louis, MO) in October 2005. Haines advertised it in early 2006 still in Beith's American Kids livery. Bought from Haines by Aaron Lewis (Cessnock, NSW, Australia) in September 2008 and restored for him by Walter Goodwin between 2008 and 2011 to McRae's 1973 livery. Ran at the vintage demonstration at the Indy 500 in 2011 and 2012 and then on display at the Riverside International Automotive Museum. Sold at the RM Auctions sale at Monterey in August 2014 to Milton Verret (Austin, TX), but bought back by Lewis in 2018. Sold to Carlos de Quesada (Tampa, FL) at Indy in May 2019.
- Mongoose 71 (Jigger Sirois): New for Lloyd Ruby in 1971 as the Gene White team's #12 car but "abandoned by Ruby after that year's Indy 500", presumably as it was the only year for some time that he had not led the race. Sold to Pat O'Reilly and entered as the #51 Minnesota Serendipity car in 1973 for Dee Jones, John Hubbard and Jigger Sirois. Returned in 1974 as the #53 for John Cannon but failed to qualify for the Indy 500. Raced later in 1974 by Jan Opperman and by Mel Cornett and appeared in 1975 for John Hubbard and Cornett again. Wrecked at Milwaukee in June 1975 and, according to Milwaukee Mile Historian Steve Zautke, was "wiped out".
- Eagle 72  (Bentley Warren): Acquired by the Lindsey Hopkins team at some point late in 1972. It is not yet clear where Lee Kunzman first raced this car for Hopkins, as his #10 car in 1972 was a 1970 Eagle, and only photographs will show exactly where each car was used. The 1972 Eagle was Hopkins' #16 Ayr-Way Lloyds entry for Kunzman, and then became the #16 US Air Force entry for Bentley Warren later that season. It became the #42 Hopkins Buick entry for Jerry Karl to race in 1974. It was wrecked by Karl at the Indy 500, and team crew Duane Glasgow rebuilt it using the 7211 tub to run at Pocono and Michigan with Bentley Warren driving again. Warren had a tyre blow at Michigan in July, hit the wall and wrecked the 7211 tub. Duane then repaired the 7215 tub and had the car ready for Michigan in September with Mel Kenyon driving, but he hit the second turn wall heavily. Neither tub was repaired for racing again and both were later sold by Glasgow to Fred Fuhr (Hastings, MI) who sold them in 1981 to Bill Wiswedel (Holland, MI). Bill sold 7215 to restorer Walt Goodwin in the early 1990s who sold it to his customer Jim Jaeger for whom he then restored it to 1973 Indy 500 form. Run at the Goodwood Festival of Speed in 1999. Jaeger retained the car in 2010.
- Eagle 72  (Mel Kenyon): Driven by Mel Kenyon for the Lindsey Hopkins team over three seasons. It was first raced at Ontario 3 Sep 1972 and was the #23 in 1972 and then the #19 in 1973 and 1974 after being converted to Foyt-Ford power by Eldon Rasmussen. Its tub was used to rebuild 7215 in 1974 but was damaged at Michigan in July when Bentley Warren hit the wall. When the two Eagles were retired, they were sold by Hopkins crew Duane Glasgow to Fred Fuhr (Hastings, MI), who sold them to Bill Wiswedel (Holland, MI) in 1981. Bill sold 7211 to Chuck Haines (St Louis, MO) in 1982 or 1983, who sold it on to Dale Bargman (Denver, CO) in February 1984. Bargmann (later of Gilbert, AZ) fully restored the car and sold it to Dave Hammers (Sea Cliff, NY) around 1988, and he sold it to Bill Wonder (Glen Cove, NY) in 2011. Wonder died in January 2022 at the grand age of 98, and his cars are due to be auctioned by Gooding & Company at its Pebble Beach auction in August 2022.
- Eagle 72  (Rick Muther): AAR's third team car in 1972 and entered at the Indy 500 as the #48 Mystery Eagle for Jerry Grant. Also raced by Grant at other races that season, taking pole position at Ontario with the first official lap at over 200 mph. The car was sold to engine specialist Bruce H. Crower for 1973 and entered as his #23 Crower Cams car as a test bed for various Chevrolet engine projects over the next three seasons. In late 1976, the car returned again as the #57, powered by Crower's own flat-6 engine. Crower then acquired a 1974 Eagle for 1978 and the '72 car was retired.
- Eagle 73  (Dick Simon): Patrick Racing acquired a new 1973 Eagle after the 1973 Indy 500, probably either chassis 7305 or 7306. It was fitted with a Ford V8 engine and used in practice at Ontario by Graham McRae as the #60 entry, but failed to qualify. Raced by Dick Simon at two later races that season. It may have been Steve Krisiloff's intended #60 Patrick entry at Indy in 1974, identified by Hungness as an Eagle "of 1973 vintage", but the car Krisiloff actually qualified was an older 1972 car. The 1973 car finally reappeared when raced by Krisiloff at Pocono and a few races later in the 1974 season, by which time it had a turbo Offy engine. Sold by Patrick Racing's chief crew George Bignotti to Fred W. Carrillo (San Juan Capistrano, CA) and entered as the #73 Spirit of Orange County entry for Jerry Grant at Ontario at the start of 1975. This became Carillo's AMC-engined car in late 1975 and early 1976, driven again by Grant, before Carillo acquired a newer Eagle. In 1977, this car was rebuilt to Offy specification and sold to Jim McElreath for son James to drive as the #26 McElreath Racing entry in 1977. Then for Jim McElreath in 1978. In 1979, McElreath acquired a second Eagle, apparently the ex-O'Connell 1974 car, which was numbered as the #23 with the older car continuing as #26. The older car continued in use until 1981. In 2017, it was reported that this was chassis 7306, and had remained at Jim McElreath's home in Texas from 1983 until his death in 2017. It was then owned by Angus Russell (Ormond Beach, FL).
- Cecil 69 (Benny Rapp): Probably built late in 1969, but not known to have raced until 1970. Raced by Ronnie Bucknum in 1970 as the #19 MVS Special with stock block Ford or turbo Ford engines. Retained for 1971, again as the #19, when it was used by Arnie Knepper at the Indy 500, but he did not make a qualifying attempt. Bud Tingelstad failed to qualify it at Milwaukee in June, then Bon Harkey drove in practice at Pocono before being asked to step aside for Bob Harkey, who qualified, but retired early in the race. The car was not seen in 1972 but was then sold to Lloyd Gifford (Ft Wayne, IN) to replace an ancient Gerhardt and entered for Benny Rapp from Michigan 1973 to 1975 or 1976. At least one entry list in 1975 described it as a "Brabham". About 1985, it was bought from Gifford by Jim Mann who sold it directly to collector Bill Wiswedel (Holland, Michigan). It was retained in Bill's collection still in its red-and-blue Gifford livery until he sold it to Mark Klingerman (Bourbon, IN) in August 2014.
The identification of individual cars in these results is based on the material presented elsewhere in this site and may in some cases contradict the organisers' original results.
The foundation for this research is the work done by the late Phil Harms collating the results of all AAA, USAC and CART races, including the period covered here. His data was refined by Michael Ferner who added more information before making it available to OldRacingCars.com. Since the start of the USAC project on OldRacingCars.com in 2004, a wealth of further information has been gleaned from the Carl Hungness and Donald Davidson Yearbooks, Formula and On Track magazines, USAC News, National Speed Sport News and other published sources. Gerry Measures has also provided much information from his files as have others on TNF and Trackforum. Since 2009, the work of Simmo Iskül and others identifying cars from period photographs has has moved this research forward significantly.