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1981
World Endurance Championship
Tom Frank
Gassaway-Oftedahl
1 (1)
0
U
1980
World Championship of Makes
RJ Valentine
1978
David Heinz
1977
Rick Thompkins
Rick Mancuso
1975
Vince Gimondo
1974
North American Racing Team
1
1973
1972
Dana English
1971
International Championship of Makes
Or Costanzo
IMSA GT Championship
3
2
3 - 100% win rate
1970
SCCA Formula A Continental Championship
1969
Race Enterprises & Development
3,128
Championships
12,833
Results
15,933
Drivers
8,248
Teams
856
Circuits