The question should be what DON'T I like to listen to on a roadtrip! To that I would say polka, rap, techno, and heavy metal. Really, my faves: Clapton, R&B, the Who, U2, Van Morrison, Dylan, Tom Petty, Chris Issak, Byrds, Dwight Yoakum, Mavericks, Steely Dan, Dire Straights, Bonnie Raitt, Ottmar Leibert, classical, Beachboys, Beatles, Red Hot Chili Peppers, Sam Cooke, Orbison, Motown, Broadway soundtracks. . . .