Designed by Pininfarina in 1968, the Ferrari P5 was first shown at the 1968 Geneva Motorshow. The Ferrari 250 P5 Berlinetta Speciale was was constructed using a P4 chassis and had a 3 litre mid-mounted V-12 engine.. The car was a study in aerodynamics and design and it helped influence later day production Ferrari's, most notably the clear rear glass over the engine.

Pinifarina also produced another similar prototype called the Alfa Romeo 33 Coupe Prototipo Speciale.

source: www.lotusespritturbo.com