Mercedes has officially unveiled the 2012 CLS 63 AMG at the Los Angeles Auto Show. It features a 5.5-liter biturbo engine with 518 hp (386 kW / 525 PS) and 516 lb-ft (699 Nm) of torque.

Mercedes has officially unveiled the 2012 CLS 63 AMG at the Los Angeles Auto Show.

Designed for fashion conscious automotive extremists, the CLS 63 AMG features a new hood, modified bumpers, a revised grille, and unique front fenders. Other features include an aggressive rear diffuser, a four-tailpipe exhaust system, LED daytime running lights and 19-inch five-spoke alloy wheels.

Inside, the sporty cabin boasts burl walnut trim (piano black and carbon fiber trim are optional), AMG sports seats, and a three-spoke steering wheel with aluminum shift paddles.

Power is provided by a 5.5-liter biturbo engine which produces 518 hp (386 kW / 525 PS) and 516 lb-ft (699 Nm) of torque. It is paired to a seven-speed Speedshift MCT transmission which enables the car to accelerate from 0-60 mph in 4.4 seconds and hit an electronically limited 155 mph (250 km/h).

If that isn't fast enough, the optional AMG Performance Package boosts output to 550 hp (410 kW / 558 PS) and 590 lb-ft (799 Nm) of torque. Thanks to the extra power, the dash from 0-60 mph takes 4.3 seconds and the top speed is 186 mph (299 km/h).

To ensure the super saloon is up to the task being a legitimate sports car, engineers installed an AMG adaptive suspension (with Comfort, Sport and Sport+ modes), a wider front axle, a revised electro-hydraulic steering system, and high-performance cross-drilled brakes.

No word on pricing, but the 2012 CLS 63 AMG will go on sale in United States this summer.

Check out the press release for additional information