Five crazies on the track (1950)

A group of friends, artists and mechanics invent a unique, high-powered car carburetor that will allow them to win an important race. The device is stolen, and the prime suspect is the girlfriend of one of them. In their quest to recover it, they become involved in a madcap race of intrigue, confusion, and entanglements, in which the protagonists display all their histrionics and comedy.