Under the hood resides a 720hp (537kW) 6.3L V12 engine with a peak torque of 1,320Nm (974 lb-ft) that has to be electronically limited to 1,100Nm (811 lb-ft) to preserve the gearbox and tires. In developing the new powerplant, engineers at Brabus added special pistons and connecting rods, a new turbocharging system with two larger chargers and more efficient intercoolers, and metal catalysts with a low back pressure stainless-steel exhaust.
Power is transferred to the rear wheels via a massively modified five-speed automatic transmission and a Brabus rear locking differential with a locking rate of up to 40%. The car sprints from 0–100km/h (62mph) in just 3.9 seconds, reaches 200km/h (124mph) after just 10.49 seconds and passes the 300km/h (186mph) mark after a mere 24.5 seconds. Top speed is claimed to be in excess of 360km/h (224mph).
The car also gets its own custom suspension and brake package, designed to accommodate the power and weight of the twin-turbo V12 engine. Engineers installed a height-adjustable coil-over suspension set-up and sport sway bars to improve handling. The brake package consists of monster 12-piston aluminum fixed calipers gripping vented and grooved 380mm discs up front, and six-piston units biting 360mm discs in the rear.