Adam and Jamie fuel up a couple of SUVs to find out which is more efficient driving with the windows open or the air conditioner on. Next Kari, Tori & Grant try to find the smooth driving on rough roads. Then, can you stop a car by throwing it into reverse? Meanwhile, Adam and Jamie try to sort out several car related myths including using a car as cover in a gunfight and get their hands on their very own Mythbusters Cadillac. Finally, the team tackles the question, what is more dangerous, driving drunk or driving while talking on a cell phone.