I'm more of a metal head now, but back in middle/high school, I was diggin the rap scene (boy!) (ok, ok, I'm about as white as they get).
ANYWAY, I recently put Public Enemy "Apocalypse91...The Enemy Strikes Black" on my laptop for my listening enjoyment. Some of the goodies from there include: Nighttrain, and Shut 'em Down.
PLEASE NOTE: I was never hip enough to go cruisin' and when I started driving, I drove an '82 Jetta and was more into rock/metal at that time, so take my input with a huge grain of salt.