Ok, so the tires I really want are the Michelin Pilot Super Sports. Not available in 265/35-18 in Europe, not in 255/35 either but are available in 275/35. Stock 225/40 is available, but not 235/40.
So I have limited choices that are as follows:
1) Increase stagger to 50mm by using a 275/35 rear without changing from front 225/40. How negative will that be with regard to understeer, etc?
2) Choose a different tire: Michelin PS2, PS3, or Bridgestone S02A are my available choices in stock sizes. The S02A and PS2 are N rated.
Please don't suggest other tires then these, I've already narrowed down the list to these based on my preferences and what is actually available. You US guys are lucky with TireRack. Of course I could get 'em shipped for a meeeelion dollars.
What to do?