Aw, man. There are some really good ones, but to ask about my favorite songs for the road is like asking for my favorite songs in general

So(sighing heavily) in no particular order...

1)Velocity Girl: Go Costal(Recommended for roads like Ocean Parkway on Long Island, I-95 in Georgia, or the Chesapeake Bay Bridge & Tunnel).
2)Foo Fighters: Alone + Easy Target.
3)Rancid Polecats: Peterbilt.
4)Go-Go's: Speeding.
5)Rush: Dreamline(I agree with 58_Roadmaster).
6)Living Colour: Crosstown Traffic(Yes, the Jimi Hendrix cover).
7)America: Ventura Highway.
8)Sammy Hagar: I Can't Drive 55.
9)Motley Crue: Kickstart My Heart.
10)Arggh! Too many to choose from!