33 divided by… Alfa Romeo Carabo, 1968, by Bertone. The Tipo 33 had an illustrious racing career, but it also provided the basis for an unusually large number of concept cars. One of the first was Marcello Gandini’s “beetle,” which had a profound effect on car design for the next decade. It used chassis number 75033.109, which was that of a 33 Stradale road car using an alloy 1995cc 90º V8.