Hot Pursuit: The Definitive Guide to D20 Chases (d20)
Hot Pursuit lets you experience the thrill of the thunder of horse's hooves¸ the rattle of wagon wheels¸ the pealing screech of tires¸ or the scream of jet engines as your player-characters enact chase scenes to rival those found on the big screen.
"In Hot Pursuit¸ chases are given the same focus given to combat¸ rather than just cursory coverage. Rules are given for the affects of the environment upon the chase¸ maneuvers (including passenger maneuvers¸ so that nobody is left out of the excitement)¸ obstacles¸ mounts¸ vehicles and more.