JCB Hydromax set a provisional FIA flying-kilometer average of 406.320 mph at Bonneville.

It is powered by two production-based JCB hydrogen combustion engines tuned to a combined 1,600 horsepower.

The run eclipses BMW H2R’s 185.5 mph hydrogen-IC record, the 303 mph fuel-cell mark, and JCB’s 350.092 mph Dieselmax.

JCB Hydromax has pushed hydrogen power deep into four-figure territory, setting a provisional world land speed record of 406.320 miles per hour on the Bonneville Salt Flats in Utah. The British-built streamliner runs on hydrogen-fueled internal combustion, not fuel cells, and was driven by Wing Commander Andy Green OBE, pending final…

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