Buuxi weedha soo socota: ACO waxay si dhow ula shaqaynaysay IMSA iyo Bill France Jr. ee NASCAR iyo Daytona Speedway, si ay u dhiirrigeliyaan tartanka tartanka. Ujeedadaas awgeed afar baabuur oo IMSA ah iyo laba baabuur oo NASCAR ah ayaa la galay. Inkastoo tartanku uu isku dhacay tartan NASCAR ah oo ka dhacay Riverside laba ka mid ah kooxaha da'yarta ayaa yimid. Hershel McGriff wuxuu la tartamay wiilkiisa Dodge Charger, halka Dick Brooks uu Ford Torino la wadaagay Dick Hutcherson (sidoo kale darawal NASCAR ah, iyo halyeey ka tirsan tartanka
1966 tartanka Ford) iyo Marcel Mignot (macalin wadista wadista wadista Le Mans). Gawaarida waxaa loo isticmaali jiray inay si adag u leexdaan oo ay ku jiraan daaqadaha iyo iftiinka. Gawaarida ugu culus ee tartanka, waxay soo jiidatay dareenka warbaahinta waxayna caan ku ahaayeen dadweynaha Faransiiska. Horyaalka Trans-Am ee Mareykanka John Greenwood wuxuu horey u soo qaatay Corvettes tartanka. Sanadkan waxaa yimid Corvette-kiisa la beddelay ee loo yaqaan 'IMSA-spec', oo loogu magac daray 'Batmobile'. Shaashadda waxaa naqshadeeyay Bob Riley (Injineerkii hore ee Ford GT iyo Saturn rocket) iyo aerodynamics by Zora Arkus-Duntov. Inkastoo ay culus tahay, oo ay leedahay disc disc disc weyn, 427 cubic inch V8 ayaa riixay 700 bhp waxayna gaariga gaarsiisay 355 kp / h (220 mph). Michael Keyser wuxuu iibsaday mid ka mid ah Chevrolet Monzas cusub oo uu wax ka beddelay DeKon Engineering, oo loo dhisay inuu la tartamo Porsche ee taxanaha IMSA. Tom Vaugh iyo Diego Febles ayaa sidoo kale tartanka ku galay labo ka mid ah Porsche-yada IMSA.