"Runflat tires" are a type of tire designed to keep working even when they are punctured, allowing the driver to continue driving for a short distance to find a safe place to stop or get the tire fixed. Full definition
Other primary safety equipment that Z4 Roadster gets comprise ABS, cornering brake control, dynamic stability control including dynamic traction control, electronic differential lock, electronic vehicle immobilizer and crash sensor, roll - over protection system, run flat indicator, runflat tyres with reinforced side walls, side impact protection and three - point seat belts at all seats. (auto.ndtv.com)
The roof can be dropped down or put back up in 18 seconds and the vehicle runs on Runflat tyres. (motorbeam.com)
The car also gets new runflat tyres that allows you to drive on a flat tyre at 80 kmph. (auto.ndtv.com)