We absolutely love daredevil antics in cars and on motorcycles, given they are done safely and by professionals. The folks at Top Gear Live are just about to satisfy our craving by pulling off the first 720 on four wheels, which Top Gear has dubbed the "Deadly 720." The term "720" refers to a pair of 360-degree loops in succession, so absolute perfection is required to succeed in tackling each loop.

To give you an idea of just how much precision is needed, the engineers heading up the stunt have estimated that the customized buggy that Top Gear Live is using for this stunt must enter each loop between 24 and 26 mph, 2 mph more could result in excessive G-force and result in the driver blacking out and 2 mph too low would cause the buggy to fall from the loop. To help avoid driver error, Top Gear has fitted the special stunt buggy with an accelerator lock that will hold the accelerator in a precise position to maintain the prescribed speed, so the driver can focus only on keeping the buggy on the 58-meter-long track.[...]

Source: topspeed