Wow. Everybody stole the good ones--I agree with Jason'* ACDC and Outkast and Christina'* "Faint" by Linkin' Park (the other ideas were great too--but just saying those stood out as favorites). Also (as I scan through my MP3 player and I hope I don't repeat past suggestions)...
"Buck Rogers" -Feeder (from Behind Enemy Lines)
old Bon Jovi stuff is usually pretty good
"Breaking the Habit" and "Lying from You"- Linkin Park (actually all of Meteora is good)
"Wrong Impression" - Natalie Imbruglia (But, that might just qualify as a girly driving song)
"They Say Vision" - Res
"She So High" - Tal Bachman
"The Wreckoning" -Boomkat (for some reason I love driving through the country with this song)
"Suffer Me" -Matchbox Twenty (*had* to get Rob Thomas on the list
"It'* Going Down" - Linkin Park and someone else-I forget who (I think this song you might either love or hate-it'* kinda like that)
"Save Tonight" - Eagle Eye Cherry (ok, not sure if it'* really a driving song, but I'm putting it down anyways)
...k, that'* all from me for now....