Fastest-accelerating rollercoaster

Dodonpa, a steel roller-coaster at Fuji-Q Highland in Fujiyoshida, Yamanashi Prefecture, Japan, goes from 0 to 172.03 km/hr (106.9 mph) in 1.8 seconds. As of May 2014, Dodonpa – which uses a compressed-air launch – is the fourth fastest coaster in the world.