Karts DLC is destroyed by new physics.
Their low ground clearance and rubber wheels are designed to keep the grip on the road in sharp bends. On the road the karts gets a lot of drift. Accelerated regimes lead to drifts and somersaults on the curbs.

The frame of the carts is designed to slide along obstacles, without damaging the wheels.
In the game, the karts on the sliding curb along the curb - unfolds perpendicular to the curb.

It is impossible to compete for prizes.

I can not get the time of the mileage records that I received in the previous competitions, with the former wheel physics.