The mtu series 199 is the best-selling tank engine in its power class. The 6- and 8-cylinder engines of the mtu 199 series are characterised by particularly high power combined with especially low weight and volume. Alongside the Boxer, the mtu series 199 also powers other armoured vehicles in this size class. The Rolls-Royce business unit Power Systems manufactures the engines at three locations: in Friedrichshafen (Germany), East Grinstead (UK) and Aiken (USA).
Rolls-Royce is currently developing a variant of the mtu series 199 with even higher power output - 800 kW compared with the current 600 kW - to ensure the best possible off-road mobility even for heavier vehicles.