It is nice to know there are little things called wheel spacers out there that allow you to fit nearly any wheel to your car. Wheels from cars such as Porche will definatly need spacers (adapters) to fit a VW or Audi car. You can also change the stance of the car spacing the wheels out makes the car look wider and lower. It also improves handling. So to find your wheel adapters or spacers use the links below:
Wheel Spacers