The new BMW M5 (combined fuel consumption: 10.5 l/100 km*; combined CO2 emissions: 241 g/km*) is in record fever: on 11 December 2017, instructor Johan Schwartz performed a sustained drift at the BMW Performance Center in Greer, South Carolina, in the new BMW M5, covering exactly 232.5 miles (374.2 kilometres) on a so-called skid pad, thereby setting a new GUINESS WORLD record for the longest drift in eight hours. Schwartz shattered the previous record by 143 miles (230.1 kilometres). A custom-built refuelling system developed by BMW in collaboration with the North Carolina-based company Detroit Speed made it possible to drift continuously without a break for the full eight hours as required by the GUINESS WORLD RECORDS. This enabled the BMW M5 to be refuelled during the drift in the same way that fighter jets can refuel in mid-flight – though in this case the operation was performed by hand: a second BMW M5 driven by the Chief Driving Instructor of the BMW Performance Center, Matt Mullins, accompanied the record-breaking M5. Mullins adapted to Schwartz's drifting speed, allowing Matt Butts of Detroit Speed to carrying out the refuelling operation, secured by a safety tether that permitted him to straddle the space between the two moving vehicles by leaning out of the rear window of the second car.