My E84 M Sport has staggered wheels, fronts are 225/45/R18 and rears 255/40/R18. I'm considering putting a spare set for the winter months, can I change to square set up and a smaller size (17) and if so would this affect handling etc?

Thanks, I've got the runflats too so don't know if changing them to normal would help matters? I'm sure there's not a problem with it, just that all my previous cars for decades have had light steering so this came as a bit of a shock!

Hi All I've just part exed my C220 for a little X1 M Sport, the main reason being I live in the country and the conditions weren't great for the lowered suspension of my previous car, lovely though it was. I only picked up the X1 yesterday, and love it EXCEPT it's heavy steering at slower speeds and...