You need a fully upgraded (performance [second engine enough], but NO armor) ROCKET - (main car, the 1st) and you have to "tune" the "Gear ratio" for "long" (right), so for high max speed. You can do this after the event setup, just before start the race.
If you need money for the upgrades, here is an easy farming method for get EXP points and CR fast: Solution for Showing Some Dedication in Wreckfest
Espedalen Raceway - Main circuit Reverse
Banger Race - 0 opponent;the rest not important
Everything can be on Easy
After the 2. left turn just push, before the next left corner, on the right side you can see the road continues, so go there! Easy from here...
Check the video below