BMW’s 650i is the second generation of the 6-series coupes. The 650i Gran Coupe features extensive use of aluminum for weight reduction and is powered by a 4.8L V8 engine that puts out 362 horsepower in coupe or convertible body style. Your 650i Gran Coupe would have left the factory with Bridgestone Turanza ER300, Bridgestone Potenza RE050A RFT/MOE/II or Goodyear LS-2 ROF tires as OEM, and would have been available with Base and M Sport trim levels.
When you shop 2015 BMW 650i Gran Coupe tires, tire sizes could include 245/35R20 (front), 275/35R19, 275/30R20 (rear) or 245/40R19, so be sure of the correct size you need. We’d suggest premium all-season tires like the Pirelli Cinturato P7 All Season, Continental P
roContact GX and Michelin Pilot Sport All Season 4. For more spirited driving, there are summer and ultra-high-performance tires like the Bridgestone Potenza RE050A and Michelin Pilot Sport 4. Just be aware that the softer, sticky, pliable tread compound of summer/UHP tires will stiffen and lose traction in colder weather. Summer/UHP tires shouldn’t be used if temperatures are below 40-45 degrees F.