In my race game I use wheel colliders. First I made the game then I realised that my cars are four times bigger than they should be. Now that I did many things depending on the current cars so I cannot change their sizes. So I changed the gravity to suit. When I increase the gravity the cars top speed and acceleration increases very much. Which physically does not make sense unless the wheels are not slipping too much all the time. And the wheels are not slipping. A cars top speed is when its drag plus rolling resistance meets the force from the wheels (torque/radius). And gravity does not have any effect on either. Increased downforce cannot increase top speed. Does anybody have any idea how to fix this?
(Maybe I could not express myself above. The situation is against physics laws, it should not happen, a cars top speed does not increase with gravity, I believe its a kind of bug)