A German engineering student spent 10 months modifying a toy car and turning it into an extremely fast vehicle capable of reaching speeds of up to 92.24 mph (148 km/h).

31-year-old Marcel Paul has always been fascinated by Bobby Cars, a type of toy car that was invented to help children learn to walk but that gained a cult following among downhill racing competitors during the 1990s. With 14 World Championships and 9 European Championships under his belt, Paul is one of the most successful riders in the history of this wacky sport, but to really cement his legacy, he decided to do something even more ambitious – create the world’s fastest rideable toy car. It took him 10 months to research, design and build the tiny speed demon, but he was able to smash through the old record of 88 mph on his first try.

Marcel started out by buying a Baby Porsche 911 from the company BIG to use as the base of his ambitious project. Next, he built an aluminum chassis for it, lowered the suspension, and replaced the stock steering wheel with a racing-worthy one. But, most importantly, commissioned a company to create an electric motor and battery according to his specifications, to ensure they fit in the tiny frame, as maintaining the appearance of a toy car was crucial.

Finding someone to sponsor his crazy idea was another big challenge, as the whole thing cost him just shy of $10,000, but he got it done in the end and managed to get his toy car to the Hockenheimring racetrack in Germany to test it out. To maximize his chances of setting a new Guinness Record, Marcel drove the car down the track’s longest straight, the “Parabolika”, and also made a last-minute adjustment that could have resulted in a disaster – he removed the limits on the controller.

“This change was not tested and could have led to overvoltage during the record attempt,” the young daredevil told Guinness. “This would have caused the vehicle to simply shut down during the attempt. Fortunately, this did not happen.”

Marcel Paul managed to smash through the planned 88 mph goal on his first try, clocking in at a whopping 92.24 mph (148 km/h) and setting a new Guinness record for the world’s fastest rideable toy car.