I have a question. I was doing real good in racing with my Silvia, but then I put in new tires and now my car sucks. Can you un-equip tires and put the ones I like on it? Thanks please replay quickly!

sure can...right before a race...go to the settings icon.It looks like a tool box.Just pan over to the right and look for the tires...u can equip and unequip there.

You can also do it at pit stops when u get farther along.