My 94 525i (74,000 miles) has a bad vibration between the speeds of 55-60 mph. I took the car to be balanced several times with no success.

Just got a 1998 M3 Sedan but i need new front tires. I have pilot sports on back. Tirerack lists Sumitomo HTR+ and Michelin Pilot SPort A/S as the only two 'ultra high performance all …