i think you need to work on your tyre sidewalls but...
my rubber material isn't black, u think it is because of the light, but look here how it really is
and sry
sorry dude but, i think who needs to work on materials is u, look your floor man, it really suck(:shrug
the only problem with my FBM is the wheel bar(i don't know how to call it)
and why don't my wheel fix with FBM?