It had a three cylinder double-acting engine in a 'broad-arrow' configuration, mounted in a tubular steel chassis with a Kevlar body, giving a gross weight of just 1,050 lb (476 kg). Uncomplicated and robust, the steam engine was claimed to give trouble-free, efficient performance. It had huge torque (1,100 ft⋅lbf or 1,500 N⋅m) at zero engine revs, and could accelerate from 0 to 60 mph (0 to 97 km/h) in under 8 seconds[citation needed].