I have to say for crusing music, especially in a classic Mopar, I'd have to go with the following:
AC/DC - Thunderstruck/Back in Black (or almost anything by them)
Led Zepplin
Guns and Roses - Appetite for Destruction
ZZ Top - almost anything
Lenny Kravitz - Dig in is good, American Woman (remake)
Radar Love
Steppenwulf
Golden Earrings - "Twilight Zone"
Aerosmith - (Pretty much anything)
Van Halen
Motorhead
Bush (the group
)
Whitesnake - "Still of the Night"
Metallica - "The One"
Scorpions
Soundtracks:
Dazed and Confused
Gone in 60 Seconds (New version, movie might not be liked as much as the original but the soundtrack was great!)
That's all I can think of right now off the top of my head.
New Group:
Evanescence