Traditionally, IFVs are expected to interact with main battle tanks (MBTs) on the battlefield. In reality, many IFVs are not mobile enough to keep up with the pace of an MBT. The Puma aims to close this gap with several key technologies. Firstly, its compact, lightweight MTU Diesel engine is unusually strong at 800 kW nominal output, which may make it the most powerful engine in use on an IFV today. Even at the 43 t maximum weight in protection class C, it has a higher kW/t ratio than the Leopard 2 MBT it is supposed to supplement.