I read too much into this topic; these are mostly for long trips, not really daily driving.

1)Tom Cochrane: Life Is A Highway
http://www.youtube.com/watch?v=nCPbL4yA7ik

Rascal Flatts version (official):
http://www.youtube.com/watch?v=mvsmRuRp4cM
Movie clips:
http://www.youtube.com/watch?v=jURRsAMGuZk&feature=related

2)Chuck Berry tunes
a)Get Your Kicks On Route 66
b)No Particular Place To Go (Ridin' Along In My Automobile)
http://www.youtube.com/watch?v=uIc2vZ2ZZ5A&feature=related
c)Maybellene (Why Can't You Be True?)
http://www.youtube.com/watch?v=8RAfxiyMKAk

3)Ricky Skaggs: Highway 40 Blues
(This is my favorite kind of music video: just music and traffic!)
http://www.youtube.com/watch?v=yzcC2l30P7o&feature=related

4)Kathy Mattea: Eighteen Wheels (And A Dozen Roses) (official music video)
http://www.youtube.com/watch?v=unYxVk1sX-I

5)Willie Nelson: On The Road Again
(fan video)
http://www.youtube.com/watch?v=CFifj_ubwWI

6)Jerry Reed: Eastbound And Down (Loaded Up And Truckin') (Smokey And The Bandit Motion Picture Soundtrack)
http://www.youtube.com/watch?v=uHZJej98_T0

7)Billy Joel: You're My Home
http://www.youtube.com/watch?v=c4D40r-E7yk

8)Bob Seger: Turn The Page (Here I Go, On The Road Again)
http://www.youtube.com/watch?v=3khH9ih2XJg

9)The Eagles
a)Already Gone
http://www.youtube.com/watch?v=rFeBo8M4RhE
b)Take It Easy
http://www.youtube.com/watch?v=ovP4KP7i2lk&feature=related
c)Life In The Fast Lane
http://www.youtube.com/watch?v=IGOU6QEA9ww

10)Deep Purple: Highway Star (no roadtrip is complete without it!)
http://www.youtube.com/watch?v=XOEvm1bAQi4&feature=related
(live in Japan original recording)
http://www.youtube.com/watch?v=KgZSnAkQc4c&feature=related

11)(In a class by itself)
Rush: Dreamline
I had this playing inside my head during all of my convoy operations performed in Iraq.
http://www.youtube.com/watch?v=a1qpOO6wR_U&feature=related