Looking to upgrade the wheels on my S-Line Sportback. They are the S-Line 18inch wheels and previously had an A3 Black Edition with the titanium rotor wheels. I was considering the equivalent for this car, but seen some nice 20 inch wheels from Rs5's etc on fleebay. Can anyone help explain what the ideal ET is for my car, and what a bigger or smaller ET does as well as what the lower profile wheels will do to the handling? I have a 3.0TDI FWD at the moment and the current set up is good, even if the traction control kicks in when accelerating each time and torque steer is very bad.