In 1968 at the Geneva Motor Show Ferrari unveiled the 250 P5 Berlinetta Speciale, a concept car built as a collaboration between Ferrari and Pininfarina. It is the work of a 29 years old designer, Leonardo Fioravanti. The concept features many design elements which appeared on later Ferrari models.
The P5 featured gull-wing doors, a glass-covered mid-engine and styling that was low and curvy. The most notable thing about the concept was that it featured clear rear glass over the engine, much like many modern Ferrari do today.
Pinifarina also produced another similar prototype called the Alfa Romeo 33 Coupe Prototipo Speciale.