So I found these on eBay... They're not Eurotech (a brand I've heard many people having issues with) but they're still a knockoff, so I'm a bit apprehensive.

19" MERCEDES AVANTGARDE SL63 STYLE WHEELS RIMS CL S CLS:eBay Motors (item 370307517520 end time Dec-22-09 21:38:30 PST)

These wheels come WITH tires (General UHP seen here: Tire Details - Discount Tire ).

I'm most concerned about the fronts. The 245 tread width seems a bit wide, but the overall diameter is only going to increase by .7" according to my calculations on the aspect ratios. Offset is same as factory.

Ironically, the rear's overall diameter will decrease by .5"..,

On the rears, I thought about specifying the +25mm offset. Our wheels are +36mm, but most people end up putting on 10mm spacers to widen the track. I figured it would be as broad as it is long to simply get the wheels that would stick out the additional 10mm and be done with it, PLUS have the meatier "deep" offset in the rear which looks pretty tough IMO. That way, I could theoretically use the factory lug bolts (prodiving the lug seating depth is the same on these wheels) and bypass having to order longer bolts.

I think the combo would look killer, I've always loved the SL63 wheels. I think it would be super clean with the white.

Advice greatly appreciated