Qeybtan sii qor - Qeybta mashiinka ee Mustang ma aheyn mid ballaaran oo ku filan oo lagu rakibo mashiinka weyn ee Boss 429, sidaa darteed Ford waxay qandaraas la gashay Kar Kraft ee Dearborn, Michigan, si loo hagaajiyo 4-xawaaraha Cobra Jet Mustangs si ay u aqbalaan. Kar Kraft waxay ahayd xarun tijaabo ah oo Ford u gaar ah oo u shaqeyneysay sidii Injineernimada Gawaarida Gawaarida Gaarka ah ee Ford. Kar Kraft wuxuu horey u soo saaray GT40 MKII kii ugu horreeyay (guusha 1966 ee 24 Saacadood ee Le Mans
) oo naqshadeeyay oo dhisay GT40 MKIV (guusha 1967 ee 24 Saacadood ee Le Mans).