In your dream, you're not in a car at all, but on a bicycle, a humble, earth-friendly, healthy, populist mode of transport. The Volkswagen you spot amplifies this sense (after all, it translates as the "The People's Car.") Your dream seems to be suggesting we're going to have an encounter with a more ground-level, homely truth. But what truth? You stumble upon the boys in flagrante delipto. Your dream depicts Tom and Ray as brothers who are this close. Okay, it turns out they're only faking necking at curbside (though if this is "the oldest ploy in the book," I have to wonder what book you're reading....)
I'm going to take a wild flying Freudian leap here. Could this dream possibly have to do with some latent anxiety about your own sexual orientation? (Bi-cycle...bi-sexual?). If so, not to worry; the pure conviviality of the last scene says, essentially, "Whatever. Relax, man. Everything's cool."