how do you know if the wheels will fit. like lets say the wheels are 17x7 and bolt pattern is 4x100 is there a way to find the offset out???

 

well for starters if you are looking at wheels that tell you the bolt pattern is 4 X 100 they won't work....that is unless in your area the P5 comes with 4 bolt wheels.....as I know here they all have 4 wheel disc brakes and a 5 X 114.3 bolt pattern.

as for the offset....you just need to ask the people selling them what offset they have....as many wheels are available in different offsets for different applications. just make sure you get the correct offset for your car....in the case of a 17 X 7 wheel...ensure you are getting a MINIMUN of a +45mm offset.