The Alfa Romeo 33 Stradale is a mid-engined sports car built by Italian car manufacturer Alfa Romeo. It is one of the world's first supercars; it was the fastest commercially available car for the standing kilometer when introduced. 18 examples were produced between 1967 and 1969. "Stradale" (Italian for "road-going") is a term often used by 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. A twin headlight 33 Stradale can be seen in the 1969 Italian movie Un bellissimo novembre. History The 33 Stradale, a limited series production car first built in 1967, was based on the Autodelta Alfa Romeo Tipo 33 racing car. The car, designed by Franco Scaglione, and built by Carrozzeria Marazzi, made its debut at the Paris Salon de L'Auto 5 October 1967. The first prototype (chassis no. 10533.01) was built at Autodelta's workshop in Settimo Milanese, side by side with the Tipo 33 "Periscopica" race car in 1967. The body was built by Franco Scaglione and his men, while Autodelta made the technical production. Another magnesium bodied prototype (chassis no. 10533.12) (planned for some street racing) was started by Scaglione. However, this was not finished until 1968 by Marazzi. The two prototypes are the only ones to have dual headlight arrangement. This was redesigned by Scaglione on the following production cars due to regulations on minimum headlight distance from the ground. The two prototypes carry the projects original serial numbers, 105.33.xx. However, the Tipo 33 racing- and production Stradales got 750.33.0xx (racing) and 750.33.1xx (stradale) chassis numbers. Marazzi claims to have built 18 chassis. 5 of them were used for 6 concept cars (one chassis was used twice) by Pininfarina, Bertone and Giugiaro/ItalDesign. Eight are confirmed with Scaglione's beautiful bodies. The rest are experimental or unconfirmed at this point. There are huge holes in the history of the Tipo 33s and the exact number (allegedly 18) of actual Stradale-chassis (with 10 cm longer wheelbase than the race cars) doesn't quite match the range of chassis numbers. The car was introduced at the Sport Car Show at Monza, Italy in September 1967. The prototype (chassis No. 105.33.01) was sold to private Gallery Abarth, Japan. The second magnesium bodied Stradale prototype (chassis No. 105.33.12) and the five concept cars are now part of the Alfa Romeo Museum. Specifications Body and chassis