Unity 5 Wheel RPM

I have managed to make the new wheelcolliders mostly work for my racing game, however the rpm readings from the wheel colliders are absurd and fluctuate dramatically. My car appears to be behaving normally, so I assume that these are inaccurate readings. Please let me know if anyone else has experienced similar issues, or has a workaround or fix for this problem.

Thanks.

Can you post a screenshot of your wheel collider components?

Acknowledged, set your fixed time step to 0.02. If it is other than that, wc doesn’t work correctly.