I thought the car was rear biased on the differentials, providing more torque to the rear than front in case of spinning. When accelerating in circles the car barely turns, only increasing the rmp. When regaining some speed it realy sounds and feels like the clutch is hooking up again and providing torque to the wheels...The center differential is a Viscous one, it's not meant to let the tires spin but the opposite so if you are on full gas the axles become solid and the car understeers... That was a real problem on this car. If you want to mitigate it, you can increase the preloads but you will get some more understeer on curve entry...