This is how a MTU MB 873 Ka-501 liquid-cooled V12 twin-turbo diesel engine 1,500 PS (1,479 hp, 1,103 kW) at 2,600 rpm sounds.
This is the engine of Leopard 2 tank. This tank was developed by Krauss-Maffei in the 1970s for the West German Army.
Watch it in action. Amazing sound and power.