24/08/2026
Celebrating 20 years of DieselMax.
On 23 August 2006, JCB DieselMax set the world diesel land-speed record at Bonneville Salt Flats, a record that remains unbeaten today.
For Envisage Group, then Visioneering, DieselMax remains a defining chapter in our engineering heritage. Our team was responsible for the mechanical design and construction of the vehicle, from its chassis and bodyshell to its suspension, steering, braking and vehicle systems.
Twenty years on, 350.092 mph still stands.