The Potenza S001 RFT (Run-Flat Tire) is Bridgestone's Max Performance Summer self-supporting run-flat tire developed as Original Equipment exclusively for BMW 3 Series sedans beginning with 2012 model year F30 chassis vehicles. Designed to provide temporary extended mobility for a distance of 50 miles at up to 50 mph even after a puncture has allowed complete air pressure loss, the Potenza S001 RFT also delivers sports performance in dry and wet conditions. However, like all summer tires, they are not intended to be driven in near freezing temperatures, through snow or on ice.