Wheels moving much too fast


I am having a problem with my vehicle.
I followed this tutorial:
It worked good so far, but I have two problems with it:

  • The wheels are rotating the wrong direction, while the car drives in the correct direction.
  • The wheels are moving much too fast. And the car drives very unstable, like it is making a permanent burnout.

Unfortunately I am very new to UE4 and I have no idea, where to look.
Can anyone give me a hint?

Thank you, regards

Check Friction in the Wheel Data type
Check the physical materials on the road surface
Check the Physical Material of the wheels in PhAT

check the alignment of your wheel bones eg x=forward z=up
sounds like yours are flipped/mirrored