which is better to fit to a fiesta rs turbo am only asking cause iv got a set of 17"s, iv seen 16"s going cheap on ebay 7"wide tho? and what tyres? what do they handle like with 16's/17's? do they catch on full lock?
cheers andy

 

15's imo

Or 16's if you have large brakes

 

15, will give best handling.

 

I use 15, would not go any bigger.

 

15's.

16's only if needed for brake clearance.