More songs that (at least kind of, sort of, maybe, partially) fit the theme, that I can provide, if necessary:

Gomez -- "Devil Will Ride"
Janis Joplin -- "Mercedes Benz"
Johnny Cash -- "One Piece At A Time"
Joni Mitchell -- "Big Yellow Taxi"
Nick Drake -- "Road"

Actually, my sisters are coming to town this evening, so I may not be able to upload until tomorrow, if someone else can do them earlier.

Since you don't have the John Denver, see if you can find Toots and the Maytals version of Country Roads. It's so great.

My road trip must hear song is "Gimme Shelter". It doesn't specifically mention road tripping but when I hear it I always feel like I'm gonna get where I'm going.

Sorry, had a meeting.

Thanks to juliana for sending me Corb Lund. Thanks to Perkins, Tep, Sue, and Sean for sending stuff along later.

Gomez -- "Devil Will Ride"

Janis Joplin -- "Mercedes Benz"

Johnny Cash -- "One Piece At A Time"

Joni Mitchell -- "Big Yellow Taxi"

Nick Drake -- "Road"

Definitely interested in "Mercedes Benz". I already took off "Road", can't remember why. I also ended up taking out taxi songs (including "Mr. Cab Driver"). I don't know the other two, but I'm always happy to check out new music.

Convoy -- C.W. McCall

Oooh, that's already there, but I forgot to add it to the list I posted.

I bet if you go to the "Car Talk" website you can find some good car songs.

sumi, I was going to say great suggestion (and it is), but then I realized that the buffistas had added so many suggestions of their own that it probably wasn't even necessary!

As always, thanks for your suggestions!

how about "Bad Motor Scooter" by Montrose.

Okay, here's what I have here at work that I can provide (my home library is more extensive):

"Gypsy Biker" - Bruce Springsteen
"Yellow Checkered Cars (Bang The Doldrums)" - Fall Out Boy
"Keep The Car Running" - Arcade Fire
"Tonight Is The Night I Fell Asleep At The Wheel" - Barenaked Ladies
"'B' Movie Box Car Blues" - Blues Brothers
"Roll Me Away" - Bob Seger
"Hurtin' Albertan" - Corb Lund Band (all about the road)
"A Girl Named GO" - Cory Branan (Doin' 60 with a 40 and a .45...)
"The Ride" - David Allan Coe
"Passenger Seat" - Death Cab For Cutie
"1952 Vincent Black Lightning" - The Del McCoury Band
"Gear Jammer" - George Thorogood and The Destroyers
"Power of Two" - Indigo Girls
"Car Train" - Jazz Jury
"Coma Girl" - Joe Strummer & The Mescaleros
"One Piece At A Time" - Johnny Cash
"Sweet Carolina Rain" - Kane
"Bikeriders" - Lucero
"American Car" - Mike Doughty
"South Side" - Moby
"Ghostrider" - Henry Rollins Band
"Lovers In The Backseat" - Scissor Sisters
"Highway 101" - Social Distortion
"Brand New Cadillac" - Vince Taylor and His Playboys

“The Truck Got Stuck” by Corb Lund (in honor of juliana)

YAY!

"A Girl Named GO" - Cory Branan (Doin' 60 with a 40 and a .45...)

MORE YAY!

I have "Cool in the Backseat" by the Nields, which is awesome if only for the following lyric:

You came over to my house/there was trouble written all over you/but literally, on your t-shirt it said "trouble"/what was I supposed to do?

At work I also have "Drive You Home" by Garbage, "Asleep in the Back" by Elbow, "Let's Ride" by Nashville Pussy, "Lovers in the Backseat" by Scissor Sisters

Golden Earring's Radar Love has always been a great road trip song for me, and I could send you that.

I've been drivin' all night,
my hand's wet on the wheel
There's a voice in my head that drives my heel
It's my baby callin', says I need you here
And it's half past four and I'm shifting gear

megan, I'm sending those 2 songs to your Gmail.

megan, I don't have the gmail - is profile addy good or buffista rawks?

Also, there's "American Car" by Mike Doughty, which I have at home.