Burning a dics for a road trip, suggestions...

Few more:
Road To Nowhere, Talking Heads
On The Road Again, Willie Nelson
Mustang Sally, Wilson Pickett
Cheers

If my wife is going with me I would find something that says "slow down, your too close...watch the road" so she could rest hehehehe

I think John Mayall and the bluesbreakers is really good for the road. Also Grateful Dead,Workingmans dead.
Grand Funk, Neil Young, Quicksilver Messenger Service, Traffic(Wellcome to the Canteen this is something to listen to on the road.
Happy Trip
Alan

Mott the Hoople's version of "Sweet Jane" It just oozes road trip.

Running down a Dream/Tom Petty
Highway Star/ Deep Purple
I'm in Love with my Car/Queen
Ridin in my Car/NRBQ
Ring of Fire/Wall of Voodoo
Love to love You/ UFO (live Version)
I Don't Need No Doctor/Humble Pie
Change your Mind/Neil Young
Green Grass and High Tides forever/The Outlaws
In A Gadda Da Vidda/Iron Butterfly
The Pusher/Steppenwolf (live from the matrix)
Get Ready/Rare Earth