Ive got a set of Style 281 Winter wheels I used to have on my old F13 650i. OEM wheels with Dunlop Winter Sport 3D run flats with really good tread left. I used them for about 4 months a year for 3 years. Its a square setup of 245/45R18 on all 4 tires. Will fit most BMW's but was primarily for an F series 5, 6, or 7.