I bought my 2000 S70 SE GLT in May 2001 with approximately 12,100 miles on it. It was previously in a rental fleet. The original tires are Michelin XGT V4s. I have keept these tires inflated at the maximum recommended (cold) pressure -- 36 psi -- to prolong tread life. Neverthless, with the car approaching 23,000 miles, the tire-wear bars, or whatever you call them, are starting to show. I may have to replace these tires at 30,000 miles. My dealer says they are high-performance (V-rated) tires, and they wear out sooner. I'm used to getting 40k miles or more out of radial tires, and I'm not happy about it. I would be interested in any and all recommendations about brands other than Michelins, which I think are way over-priced these days.