The Noble M400 features a mid-mounted transverse engine design. The power plant is originally a 2968 cc DOHC Ford Duratec V6 with four valves per cylinder, used in the Ford Mondeo ST220. With this engine as a base, Noble fits high-lift camshafts, revised fuel injection, and two turbochargers. For durability, Noble has also added forged pistons, an oil cooler, a larger baffled oil sump, and extra cooling ducts. This engine has a max power of 425 bhp (317 kW) at 6500 rpm, with a torque figure of 390 ft·lbf (530 N·m) at 5000 rpm. This power and a light weight allow the M400 to achieve a power to weight ratio of just over 400 bhp/ton, the figure for which it was named, and a 0 - 60 mph (97 km/h) of 3.5 seconds. Top speed is 185 mph (298 km/h). The UK auto TV show Vroom Vroom said that the M400 gave Ferrari Enzo performance at a Porsche 911 price.
