The owner of my company has a 09 335i beamer being the typical woman driver she has now gone through 3 sets of tires Flats curb damage etc... and at 1400 per set they aren't cheap. Somehow i've been tapped to make suggestions on better tires but I don't want to compromise ride quaility or handling for her. Currently this car has michilen 225/40zr18 front and 255/35zr18 in the rear and they are run flats which she apparently needs does anybody have any suggestions on what brand I can suggest to her that still has run flats that arent 300 and 350 dollars I was thinking changing the profile of the tires but not being too keen on bmw's i don't want to change the way this car drives.