[Tulsaman]

My 2019 640i GT xDrive with luxury package came with summer tires. I’m not able to find 19” staggered ALL SEASON, run flat, touring tires for my car. Summer tires seem to be the only ones available in the US. Front tires are 245-45-19, rear are 275-40-19 (which are the problem). The closest I’ve been able to find are the Michelin MXM’s. However, the rear tires do not have the XL designation as rec. by BMW. Does anyone have any suggestions? I’m considering either replacing the rear wheels so they match the front ones or replacing all the wheels with 19” take offs from late model 5 or 7 series (G series) cars.