Vishwas is Hex Coloring Possible for Wheels?
If so I would also suggest to add that too, would be a interesting feature (VIPs only)
If you mean just simply colouring the wheels directly then No.
There are wheel models as objects in samp which means they can be attached to a vehicle but this isn't practical since :
1) Attached objects don't rotate with wheels they will just be static. (Unless you try to rotate them with script but it won't sync with wheels right)
2) All different category vehicles have different size of wheels therefore you can't attach same sized wheels.
So no it's not possible :/