For what was the final season of the three-litre World Sports Car Championship, Ferrari carried through some of the most fundamental changes to the Testa Rossa to create the 1961 250 TRI61. The only remnant of the original Testa Rossa introduced four years earlier was the free-revving V12 engine complete with the red cam covers that gave the car its name. A year earlier, Ferrari had already switched to fully independent suspension and a sophisticated space frame chassis. The work for the 1961 focused on the aerodynamics and were the result of a freshly installed wind tunnel. A longer body with a 'shark nose' air-intake and a tall Kamm tail transformed the Testa Rossa's stability at high speeds. As Ferrari had also developed all-new mid-engined sports racers, the 250 TRI61 was only used at select events. It nevertheless scored outright victories at Sebring (1961 and 1962) and at Le Mans (1961). Only two were built and both are featured in great detail in this lovely 55-shot gallery. They remain perhaps not as the best looking but certainly as the best Testa Rossas overall, and neither has changed hands in the last 30-odd years.
Of a slightly later vintage is the McLaren M3A Oldsmobile, which was developed at the start of the 1966 season specifically for Formula Libre events. The featured example is the sole survivor and was raced with great success by leading female driver Patsy Burt. The car's most prominent appearance, or non-appearance, came during the John Frankenheimer movie Grand Prix, where the third M3A served as a camera car. Coincidentally, the driver for this brave venture was Phil Hill, who had also driven the TRI61 to its famous Le Mans victory.

Enjoy the links:

1961 Ferrari 250 TRI61 - Images, Specifications and Information

1966 McLaren M3A Oldsmobile - Images, Specifications and Information