I just had Hartge Classic's, 18X8.5, installed with P Zero's and a set of H&R springs. Beautiful Wheels and Tires IMHO. And the 5er sits really nice. But, I noticed I have a bit of a shimmy at 45 mph. I picked up the car last night and the place is closed today. I plan to take the car there tomorrow and take the owner on a test run. In the meantime, I wanted to get a little feed back from the board "GURU'S" as to what the problem may be in addition to the obviously needed alignment. Spacers were used in the installation (20mm). There lay the elements. Any comments?