The Ferrari 246 F1-66, also known as the 158/246 or 246T, was a racing car used by Scuderia Ferrari and Reg Parnell Racing during the 1966 Formula One season. Originating from a Ferrari 158 chassis equipped with a 2.4-liter Dino V6 engine and updated with fuel injection, it was initially intended for the 1966 Tasman Series. Lorenzo Bandini drove the 246T in the first two races of 1966, achieving a second place and the fastest lap at the Monaco Grand Prix, and a third place in Belgium. The car was later used by Ludovico Scarfiotti at the German Grand Prix, where despite out-qualifying his teammates, he retired due to electrical problems. The final race for the 246T was the Italian Grand Prix, where it was driven by Giancarlo Baghetti for Reg Parnell Racing, finishing last due to throttle linkage issues.