The wheels all have 235/45-17 Michelin tires mounted on them. Two are the Pilot Sport models, but they only have between .120 - .190 tread depth remaining. The other two have a fairly new set of the XGTZ4 models. These are all season, high performance tires that I run on both of my cars. Very responsive, fairly quiet with a very progressive breakaway. They're not great in the snow, but much better than a standard performance tire. These tires have between .235 - .250 tread depth remaining. If the Pilot Sports were replaced with 2 new XGTZ4's, you'd have a great set of wheels and tires.
These wheels typically go for at least $1,200 a set on Ebay. I believe there are some listed now at $1,600 reserve. I'm asking $1,350 for my set including the tires. The buyer will also be responsible for actual shipping costs from Kentucky zip 42240. If you're interested, please e-mail me direct using the link above. I can also provide pics if you'd like to see each wheel. If you want to ask questions via phone, please e-mail your number to me.
Gordon's E34 with 17" x 8" wheels: http://forums.roadfly.com/e34/messages/messages/19859.html
Robert J. Kieffer