I'm picking up my 550 ix next week and I'm thinking of getting the insurance since the roads here on Long Island are horrendous. The insurance says "Tires and wheels will be replaced using original equipment manufacturer (OEM) parts". My question is what happens when i replace the tires in a few years because of wear and I put on run flats that are not OEM parts (hopefully additional run-flats will be available other than the present Goodyears LS2's). If BMW is not using the run flat tires I put on the car will they honor the insurance and replace my tire or will they only replace it with the Goodyears? My dealer is saying they will replace whatever tire i use as long as it's a run flat but I'm not so sure.