just to hijack this thread a little, i have 205/40/17's, on rs4 alloys, do ya reckon i could stretch a thinner tyre on them?
or do you have to certain wheels for a massive tyre stretch.
as far as the lowering goes - on mine i am about 8cm off the floor on the front (dont know how much it has been lowered)and mine only rubs when i have 4 people in the car - but i dont think mine has been done properly!!