Two-Lane Blacktop (1971)

The Driver and The Mechanic are car freaks driving a 1955 Chevy through the southwestern U.S., looking for other cars to race. They're totally dedicated to their car and speak with each other only when necessary. At a gas station, along with a girl who has ingratiated herself into their world, they meet G.T.O., a middle-aged man who fabricates stories. They all decide to have a race to Washington, D.C., where the winner will get the loser's car.