driving over tiled colliders is not smooth

[Megaguy32]

instead of a large collider as floor, having many colliders as floor creates for a bumpy ride

[jsnetors]

I'm having the exact same issue, trying to find a way to fix it but as of now in Unity 2019.4, it's bugged when going over tiled mesh floor.

[ananta-abhiwan]

I am also facing this same issue while driving on an uneven track, Did anyone find any solution for this?