Alfa Romeo Tipo 33 Stradale

The Alfa Romea 33 Stradale is a mid-engine sports car built by the Italian car manufacturer Alfa Romeo.

It is one of the world's first supercars. It was the fastest commercially available car for the standing kilometre when introduced. 
Eighteen examples were produced between 1967 and 1969.
"Stradale" ( Italian for "road-going") is a term often used by the Italian car manufacturers to indicate a street-legal version of a racing car. 

Indeed the 33 Stradale was derived from the Tipo 33 sports prototype.