Rejuvenated by a substantial model update the fifth generation of the Mercedes SL now starts yet another chapter in the unparalleled success story of the popular Mercedes roadster. The corresponding exclusive sport program comes from Brabus. Powerful increased-displacement engines with up to 730 hp (720 hp SAE net) / 537 kW of power, a striking designer suit, high-quality light-alloy wheels with diameters of up to 20 inches, professional suspension tuning and custom interior design: The Brabus program leaves nothing to be desired.

The top-of-the-heap Brabus power source for the SL 600 is the Brabus SV12 S Biturbo engine, developed originally for the Brabus ROCKET, the world's fastest sedan. 730 hp (720 hp SAE net) / 537 kW of power and a whopping peak torque of 1,320 Nm (973 lb-ft), electronically limited in the car to 1,100 Nm (811 lb-ft), are the result of numerous modifications. During the displacement increase from 5.5 to 6.3 liters the engine's interior is completely reworked. In addition the engine is fitted with a more efficient turbocharging system and a stainless-steel high-performance exhaust system with metal catalysts. Power is transferred via a reinforced five-speed automatic transmission and a special Brabus limited-slip differential that is available for all SL models.

A sprint time of 4.0 seconds from rest to 100 km/h (62 mph), 10.5 seconds to 200 km/h (124 mph) and – depending on final drive ratio and tire speed rating – an electronically limited top speed of 350 km/h (219 mph) make the Brabus SV12 S Biturbo roadster one of the world's fastest sports cars.

Brabus tuning is also available for the SL 65: The Brabus T 12 S performance kit increases power output by 40 hp (DIN and SAE net) / 29.4 kW. The Brabus T 65 S power kit bumps power output to 715 hp (705 hp SAE net) / 526 kW and peak torque to 1,100 Nm (811 lb-ft).

The SL 63 AMG also receives some added power with Brabus B63 S tuning. Sport air filter, high-performance metal catalysts and newly programmed engine electronics add 40 hp (DIN and SAE net) 29.5 kW to the power output of the fast-revving V8 engine, and increase top speed to 320 km/h (200 mph).
The four-valve-V8 engine of the SL 500 (US: SL550) with Brabus 6.1 S displacement increase produces 462 hp (456 hp SAE net) / 340 kW of power at 6,200 rpm and a peak torque of 615 Nm (453 lb-ft) at 3,100 rpm. The Brabus 4.0 displacement engine with 332 hp (327 hp SAE net) / 244 kW of power and 420 Nm (310 lb-ft) of torque is available for the V6 four-valve engines of the SL 280 and SL 350.