Rainwater in a tank pressurized at 6,000 PSI, to be exact.

François Gissy, who previously built a rocket-powered bicycle that outpaced a Ferrari, has upped his game since then. This time, he’s put together a tricycle that takes only 0.55 seconds to go from 0 to 62 mph. By the time the water tank that powers it was drained, the trike reached a top speed of 162 mph over 1/8th of a mile.

The trike’s makeup consists of a motorcycle front fork, go-kart wheels and a 35-gallon carbon-fiber-wrapped aluminum tank to hold the pressurized rainwater that powers it. That’s some serious “Frankenstein-style” construction — who knows what this mad scientist will come up with next.