Here are the regulations.
pneumatic shocks, normal, or torsion spring
one engine
rear wheel drive or front wheels drive, no 4x4
basic seat, no midair control upgrades.
adjustable suspension (with actuators)
the suspension must only be upgraded 3 bars
basic wheels
8 wheels can be used, but all wheels MUST have adjustable suspension!
you have to submit the car number code below.
Here is my submition code 289578