The Renault 447 22 CV four-cylinder 5881 cc petrol engine renders, according to the official French Army manual, a maximum speed of 55 km/h, making it the fastest French tank of its day. Renault brochures claimed the higher speed of 60 km/h and many sources mention the latter number. It has a peak output of 82 hp at 2200 r/m. The average road speed is 40 km/h. The brakes are of the single dry plate type and a Cleveland differential is used. There are four forward gears and one in reverse. There is a Zénith carburettor and a Scintilla Vertex magneto, making it possible to start electrically even at temperatures below zero. A fuel tank of 130 litres renders a range of two hundred kilometres.