http://www.michelinman.com/tire-selector...ils#page_header http://www.goodyear.com/en-US/tires/eagl...=10905936600000 The Michelin Pilot Sport A/S 3 are $625 and the Goodyear Eagle Sport A/S are $455 not including mounting and tax. I'm a Michelin fan, but $170 difference is pretty dramatic. I got some 17 x 9 SVT wheels and am debating between 245 45 17 and 255 40 17 for my 2000 V6 Mustang. Internet research indicates the 245 tire is a bit stretched on a 9" rim, even though it is within the range for the tire, and doesn't protect the rim from curbs. The 255 has a 9" rim as the middle of the range of rim widths. I'd rather have the 45 series, but if it looks funny or increase chances of rim damage, I'd opt for the 255 40 size. I'm assuming all 2000 Mustangs have the same size wheel wells and these tires and wheels will fit on my base Mustang.