Chinese driver sets Guinness Record for fastest slalom with a flat tire. Driving with punctured tires can be extremely dangerous. But four drivers in China did it anyway. They deliberately drove through 6,000 steel nails and then slalomed through 50 traffic cones on a 750-meter track. The fastest driver, Guo Nan, completed the race in just 54.82 seconds, setting the Guinness World Record.