Twenty years ago, British driver Andy Green set the land speed record for a diesel-powered car, reaching 350.092 mph (563.4 km/h) at Utah’s famous Bonneville Salt Flats. In targeting the diesel-powered record, Green also hopes to easily clear the world land speed records for hydrogen internal combustion engines (185.5 mph/298.5 km/h) and electric vehicles (341.3 mph/549.2 km/h). In 1997, he traveled faster than the speed of sound and set the outright land speed record – 763.035 mph (1,227.98 km/h) – in a car powered by twin jet engines. JCB signed a deal to buy green hydrogen, which is created using renewable energy but makes up a tiny fraction of global hydrogen production. Since the first race there in 1914, the glassy surface of the Bonneville Salt Flats has drawn generations of drivers seeking to set new land speed records.