'Push' your opponent to the startpost and he will crash. You should
stay for your motion was slow. Then take an "U"-turn and go a little
back through THE TERRAIN. It will no work if you go through the road.
Then again take an "U"-turn and go back on the road. It will show 
penalty time but as you drive through the finish line you will win 
as there is no opponent left in the race.