Who are the actors in the napa commercial?

Answer 1

Martin Truex Jr. and Michael Waltrip.

song:flying a blimp? 2 much hot air. racin' down there? same thing 'ere. wouldn't get a word in with u know who. just get down on the track. do what u do. slide down in my seat. pull the belts tight. get up on the wheel and let the dust fly. napa know how. napa know how. napa nnnnnapa know how. napa know how. napa know how.

That is just one commercial of several in the series. Who are the actors in the others? I am wondering if they are crew members from Michael Waltrip Racing or are they generic actors?