sometimes you don't win. gravity does. you are in a confined area. you have gasoline and any time you have fuel in a vehicle, possibility of a fire. >> this competition is a timed course, where drivers receive penalties for errors like hitting cones or going out of bounds. >> if you accomplish that course in enough time, then you had time to go try the bonus line. >> bob runs through the course without a hitch, and approaches a 20-point bonus obstacle aptly named the wall. >> crawler went up a little ways, slid down, so we backed up. the natural thing you do, you're going to hit it just a little bit faster. >> the second attempt yields the same results. bob backs up a bit and hits the gas for a third try. no dice. with time running out, bob decides to push it even harder. >> we're just going to get into the throttle and let's see if it