Formula One World Championship
(L to R): The new Ferrari 312T of Clay Regazzoni (SUI), who retired on lap 72 with a broken throttle linkage, lines up alongside the old 312B3 T-Car of Niki Lauda (AUT) in the pit lane.
South African Grand Prix, Rd 3, Kyalami, South Afirca, 1 March 1975.