I have a set of Michelin MXM4 Pilot 225/55R 16 95H M+S on my 99 540ia that I bought used at 17500. The front tires on the car are about 80% worn out. Mostly on the outside edge. The rears look about 50% worn. Is the wear on the fronts normal given that they were never rotated or do you think the previous owner liked cornering hard? If this is normal wear then do you think I would save anything having the tires rotated at 7500 mis. increments? Thanks. -- Jeff