Hey guys. I am returning my 2016 Mini Cooper S 2-door coupe next month after a 3 year lease. My car came with run flat tires. With my 3rd set of tires at 30,000 miles (yes... 3rd set at 30,000), I decided to switch to some Michelin non run-flats. Question: Do I have to return my Mini with run-flat tires or will the dealer put them on and charge me like $1500? Thanks!