Mercedes-Benz tuning specialist Brabus, has self-proclaimed the supped up Maybach 57 SV12 Biturbo as the...world’s fastest and most exclusive ultra-luxury sedan. Powered by the same 730 Hp V12 biturbo engine as the Mercedes CLS based Brabus Rocket (click here), the Maybach 57 managed to hit a top speed of 330.6 km/h (205.2 mph) on the high-speed test track in Nardo, Italy.-Pics & press release after the jump

Press-Release: The World’s Fastest and Most Exclusive Ultra-Luxury Sedan

A world-record speed of 330.6 km/h (205.2 mph) set on the high-speed test track in Nardo, Italy; BRABUS added to its extensive collection of automotive records with a Maybach 57 powered by a 730-hp (720 hp SAE net) / 537-kW BRABUS SV12 S Biturbo engine. It is the world’s fastest and most exclusive ultra-luxury sedan. The BRABUS engineers and test drivers bested their own record set in 2005 when a Maybach 57 powered by a BRABUS SV12 Biturbo engine with 640 hp (631 hp SAE net) / 471 kW was clocked at 314 km/h (195 mph).

The SV12 S Biturbo evolution of the 6.3-liter displacement engine was originally developed for the BRABUS ROCKET, the four-door car based on the Mercedes CLS series. In October of 2006 it set a speed record for street-legal sedans of 365.7 km/h (227.2 mph), a record that still stands today.

For power increase of the turbocharged Maybach 12-cylinder engine from standard 550 hp (543 hp SAE net) / 405 kW to 730 hp (720 hp SAE net) / 537 kW BRABUS followed its tradition of increasing engine displacement. The BRABUS engineers developed a special crankshaft with longer stroke, precision-balanced piston rods and larger pistons to account for the increased cylinder bore. Displacement grows from standard 5.5 to 6.3 liters (335 to 385 cu. in.).

The inner workings of the engine are modified with precision-machined cylinder heads and special camshafts. The engine peripherals are tuned for more power with the help of a high-performance turbocharging system with special manifolds, two larger turbochargers, more efficient intercoolers, and a stainless-steel high-performance exhaust system with metal catalysts.

Custom-programmed engine electronics coordinate the perfect interaction of all high-performance components and ensure that the engine meets stringent EURO IV emission limits. The standard 250-km/h (155 mph) speed limit is also eliminated. The peak torque of 1,320 Nm (974 lb-ft) is limited by the engine electronics to 1,100 Nm (811 lb-ft).

The enormous power of the BRABUS SV12 S Biturbo engine is transferred to the rear wheels via a reinforced five-speed automatic transmission. For the lubrication of the entire drivetrain BRABUS relies exclusively on ARAL high-performance lubricants.

The top speed of 330.2 km/h (205.2 mph) places enormous demands on tires and wheels. The BRABUS suspension engineers developed forged 21-inch BRABUS Monoblock VI light-alloy wheels specifically for the Maybach. The fully polished multi-piece wheels with six double spokes perfectly fill the space beneath the wheel arches. They are mounted in size 9.0Jx21 in front with size 275/40 R 21 tires, and in size 10.5Jx21 with size 315/35 R 21 tires on the rear axle.

For further increased driving safety the BRABUS air-suspension module lowers the ride height by some 15 millimeters (0.6 inches) without compromising the unique ride comfort.

BRABUS refines the elegant lines of Maybach not just with a lowered ride height and with large wheels. The front of the sedan can be upgraded with two auxiliary headlights that serve as daytime running lights. They are stylishly integrated into the production front apron.

Exclusive BRABUS light design is also available for the sides and the rear of the Maybach: LED lights integrated into the body that illuminate the ground beside and behind the luxury sedan can be activated via the keyless fob. They help avoid unfortunate missteps into potholes or puddles in the dark. The rear of the Maybach is further upgraded with the ultra-flat tailpipes of the BRABUS sport exhaust system.

BRABUS also offers exclusive custom-tailored interiors and state-of-the-art multimedia technology for all Maybach models. Owners of the luxury sedan can choose from the finest leathers and Alcantara in any desired color and design.

Special loving attention to detail is present in the waffle-patterned leather carpeting that alone uses several kilometers of the finest thread, sewn with utmost precision. Custom-tailored BRABUS lambs wool floor mats caress the occupants’ feet.

The BRABUS development team also created additional interesting features for the standard entertainment system of the Maybach. The 16:9 flat screens integrated into the back of the front seats measure 15.2 inches in the BRABUS version (standard: 9 inches). An additional 6-disc DVD changer rounds out the BRABUS multimedia package for the Maybach.

At the push of a button the Maybach transforms into a luxurious office on wheels: The screens the display the computer’s user interface. BRABUS uses a special computer designed for use in a car that is connected to the internet via UMTS. A wireless keyboard and wireless optical gyro mouse make operating the computer easy and convenient. A USB 2.0 port, stylishly integrated into the center console, allows connecting external electronic equipment such as printer or a digital camera.