If I pop LA Woman by The Doors in, turn it up to '11', the farther into the song, the more foot on the gas pedal: http://www.youtube.com/watch?v=Xo6Es-itLg0

For a mellower ride, depending where I'm going, Peter Tosh's 12+ minute live version of "Rastafari Is" has a nice groove: http://www.youtube.com/watch?v=U4e7khttp://www.youtube.com/watch?v=Xo6Es-itLg0UgSQ00
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"I didn't care what she didn't 'low--I would boogie-woogie anyhow" John Lee Hooker