"The definitive JCB444-LSR engine displaces 5-litres, weighs 382 kg (dry), and produces 750bhp at 3,800 rpm on a relatively low 10.5:1 compression ratio and in excess of 1500 Nm of torque at 2,200 rpm. “I am confident that the JCB DIESELMAX will easily be the cleanest and most efficient land speed record car ever built,” Ian Penny adds. “The car has twice the power and more than four times the weight of an F1 car, yet half the fuel consumption."