Win the race:
Drive up to the first checkpoint and slow down. Behind the
boulders is a short patch of sand where you can drive onto
the closed road. This of course is the "wrong way" and if
you plan to go through it, you will be faster but not complete
the lap. You will not win unless you do the following.
Drive up to the end of the road, just past the "Dunniel"
(or something similar) sign, where you get your checkpoint
information and select "Replace Car" (default is [Keypad 0]).
The goal is now just a few inches away. You must to do this
five times. By doing so, you can finish the race in a little
less than six minutes. Note: Make sure you do not crash on the
closed road as the "Replace Car" might not work there, or will
place you back to the first checkpoint.