I would pick the Michelin Pilot XGT V4 if you seriously want an UHPAS tire in 215/60/15. However, if you are going to encounter snow/icy conditions, I would not recommend these tires. Instead, I'd go with dedicated Snow/Winter tire and a dedicate 3 season tire.
I would also take this opportunity to upgrade your wheels and tires. Keep you stock 15 for winter, and get some nice tire/wheel packages. Either way, u'll be set. Hey easy 4 me to talk though Seriously, I would count on the UHPAS tires to help me more then a light snow covered road on few occasions.

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Chirag (Charlie) Patel

- 99 Mercedes-Benz ML 430 V8 w/custom TV, Video, UHF, speaker system
- 93 190E 2.6 (4-sale) w/ an amp, equalizer, and CD-changer, integrated w. stock stereo for integrated cellular phone speaker system
- had a 93 190E m103 3.2, 5-speed trans,
- had a 88 300E 2.6
- had a 84 300TD w/275k+ miles
- 2002 S500/S600 - Maybe in a little more then a year