Andy Green, the fastest man on earth at 763.035mph and the only person to break the sound barrier on land, said: “Twenty years ago, JCB took two of its diesel engines, sprinkled some magic engineering dust on them and put them into a racing car. We raced the JCB Dieselmax up to an astonishing speed - and a new FIA world record - of just over 350 mph. Today, that car is still the fastest diesel-engined vehicle in history. Now we're going back to the Bonneville Salt Flats, spiritual home of the World Land Speed Record, with JCB's new hydrogen engines.