Koenigsegg Agera R is officially the king of going then stoppingS

The Guinness people say it's official — the Koenigsegg Agera R's 0-300-0 km/h (186.4 mph) time of 21.19 seconds, set this past September, lands the Swedish supercar a world record in that performance event. Among production cars, that is.

Koenigsegg is no stranger to the suds-book's nods. This is the fourth Guinness World Record the company's set since 2003 (including, for a time, fastest production car). This time, it beat the current fastest car in the world, the Bugatti Veyron Supersport, which German magazine Sport Auto got from 300 km/h and back to zero in 25.3 seconds.

The Agera R's five-liter, twin-turbo V8 engine makes 1099 hp and 885 lb-ft, and the car weighs only 2,932 pounds. By way of its seven-speed, dual-clutch Cima transmission, the Agera R can get from 0-60 in 2.9 seconds and top out at 245 mph. For brakes, it has 15.6" ventilated ceramic discs and six-piston calipers in the front, and similar 15" discs and four-piston calipers in the rear.

The full score sheet:
0-300 km/h: 14.53 seconds
0-200 mph: 17.68 seconds
300-0 km/h: 6.66 seconds
200-0 mph: 7.28 seconds
0-300-0 km/h: 21.19 seconds
0-200-0 mph: 24.96 seconds