At the 24 Hours of Le Mans last weekend, Brabus unveiled the world’s fastest and most powerful four-seat cabriolet called the Brabus 850 6.0 Biturbo Cabrio.
Based on the Mercedes S 63 4MATIC, the open-top two-door cars’ engine displacement has been increased from 5,461 cc to 5,912 cc (333 to 361 cc) by installing a forged Brabus special crankshaft with longer stroke, increasing the cylinder bore and fitting the matching forged pistons and high-performance connecting rods. The two cylinder heads are also re-machined to guarantee maximum power delivery.
The two turbochargers have been replaced with Brabus’ own and these feature bigger compressor units and bespoke exhaust manifolds. In addition, new 75-mm down pipes and reworked metal catalysts are part of the package, as is the stainless steel exhaust system.
With all the tweaks implemented, the S63 Cabrio’s twin-turbo eight-cylinder engine now churn a massive power output of 838hp at a low 5,400 rpm and 1,450 Nm of torque between 2,500 and 4,500 rpm. In the interest of the longevity of the entire powertrain, the peak torque is electronically limited in the car to 1,150 Nm.
As a result, the exclusive two-door car accelerates to 100 km/h in just 3.5 seconds and reaches a speed of 200 km/h after just 9.4 seconds. Due to tyre limitations, the top speed is limited electronically to 350 km/h .
The power is transferred to the wheels by the 4MATIC all-wheel-drive system and a 7-speed automatic transmission whose gears can also be shifted manually with the paddle shifters on the steering wheel.
These tremendously high speeds naturally place especially high demands on the aerodynamic-enhancement components, which were developed by the Brabus designers in the wind tunnel. All bodywork components are manufactured from naked carbon with a high-gloss finishing coat.
The Brabus 850 6.0 Biturbo Cabrio also comes with a Brabus front spoiler, tailor-made carbon surrounds on the side air-intakes in the front bumper and naked carbon covers for the exterior mirrors.
The rear end of the open-top luxury liner also receives a visual upgrade. The Brabus carbon diffuser provides the perfect backdrop for the two dual ceramic tailpipes of the Brabus sport exhaust system. The Brabus carbon rear spoiler on the trunk lid creates an aerodynamic balance between the front and rear axle. Carbon attachments for the side air outlets in the rear bumper round out the sporty lines perfectly.
To be able to enjoy the enormous performance including the phenomenal top speed of the Brabus 850 6.0 Biturbo variant to its full extent, the high-performance cabriolet is fitted with Brabus Monoblock “Platinum Edition” 21-inch forged wheels. The wheels are mounted in sizes 9Jx21 on the front axle and 10.5Jx21 at the rear to make full use of the available space in the wheel wells. Brabus selected Continental, Pirelli and Yokohama high-performance tyres of sizes 255/35 ZR 21 at the front and 295/30 ZR 21 on the rear axle.
Inside the cabin, the cabriolet adds scuff plates with backlit Brabus logo, whose colours change in sync with the various colours of the ambient interior lighting, and Brabus genuine carbon interior components, which replace the production wood inlays and trim strips in the cockpit. Aluminum components such as the paddle shifters, pedals and door pins add markedly sporty highlights, while the speedometer with 400-km/h matches the tremendous performance potential of the vehicle.