The Brabus 850 6. Biturbo iBusiness and I first met back March 2014 at the Geneva Motor Show. The latest inside a long brand of extremely well-appointed Brabus S-Class models, this über-sedan offers supreme speed, comfort and connectivity for the tycoon on the move. With the Brabus stand offering plenty of captivating machinery and dozens of new car unveilings going on elsewhere at the show, this was not the time or place to access grips together with the world’s fastest business tool on wheels.Several weeks later, I visit Brabus HQ in Bottrop, Germany, on a pilgrimage to familiarize myself together with the 850 6. Biturbo iBusiness, minus the distractions. I’ll be conducting this test from the back seat in addition to behind the wheel, and due to the car’s doubled-edged mission statement to excel in both kinds of hustle.
Straight from the factory, the existing W222 S-Class is an imperious conveyance. Its visual presence is an important aspect for owners, especially in places like China and the Middle East where social status-or at a minimum its perception-is everything. With distinctive AMG styling and larger alloy wheels, the S63 AMG carries even more cachet. However, when the car reaches Bottrop, the Affalterbach tailoring is morphed into something altogether different. Like swapping Boss for Armani. Neither is better than one otherare designed on the AMG aero kit, adding carbon-fiber components towards the front bumper, with more aggressive airscoops throughout the big side intakes. Carbon fiber is likewise used for those inserts just behind the front side wheels.
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The chromed radiator grille is shot-repainted and blasted in matte titanium gray to tone down the imposing (and rather bling) nose of the standard car. This de-chroming process is applied to allincorporates a diffuser flanked by cutouts for two distinctive exhaust outlet shrouds which were CNC-machined from billet aluminum. A PU-RIM trunk lid spoiler adds the finishing touch.
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Brabus offers a choice of 21-inch or 22-inch lightweight forged alloy wheels for the S-Class. At the Geneva Show, one of those options is fitted to each and every side. And so the driver side features the 9. and 10.5 by 21-inch Brabus Monoblock R in liquid titanium smoked finish, with 255/35 ZR21 and 295/30 ZR21 Continental Sport Contact 5P tires, going from front to rear. Meanwhile, the other side wears 9. and 10. by 22-inch Monoblock G rims with 255/30 ZR22 and 295from your new carbon-ceramic material that may be claimed to significantly improve thermal transfer for optimum braking performance under tough conditions. The rear setup is stock S63 AMG.
A lowering module for that Airmatic suspension drops ride height by .6 of any inch without having negative affect on comfort. In conjunction with the aero kit and also the bigger wheels and tires, the auto looks even more purposeful.
Converting the 5.5-liter AMG M157 biturbo V8 to achieve 850 hp can be a work of engineering art. While it is possible to extract 800 hp out of this engine without having change in displacement, the level of power and torque targeted by Brabus required more capacity as well as strengthened internals.
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Out of the box, the M157 motor deploys a bore and stroke of 3.86 x 3.56 inches. The Brabus conversion utilizes a custom-made billet steel crankshaft, machined billet connecting rods and forged Mahle Motorsport pistons to take the swept opportunity to 5912 cc with a bore and stroke of 3.9 x 3.78 inches. The company’s deputy development chief, Jorn Gander, explains that the new pistons need to be shorter to be close to the stock compression ratio of 10: 1, although the shorter connecting rods raise the thrust angle.
We increase boost pressure to between 1.1 bar (16 psi) and 1.2 bar (17.4 psi) according to engine speed, and this peaks at 1.3 bar (18.8 psi) on overboost, Gander says. The greater combustion pressures and temperatures need aIn the past, Brabus could have swapped the camshafts for ones with higher lift and longer duration, optimizing power and torque. However, while the bottom end from the motor has seen radical modifications, the top end is stock aside from gas-flowed cylinder heads. The reason is simple. All fine-tuning these days is carried out with variable valve timing controlled by ECU mapping, so what used to require new hardware has now become an exercise in software tweaking.
With reference to ECU remapping: fueling, ignition, valve timing and boost pressure are common recalibrated for your larger-capacity motor, deeper-breathing intake, larger turbochargers and the lumbar region pressure of your bespoke exhaust system.
Revised electronics also allow the motor to run even closer detonation for more power. This is certainly quite safe. The factory knock sensors are precision-tuned to retard the ignition well prior to the danger point, protecting the motor in case of poor fuel quality, especially inTo attain maximum-intake airflow, Brabus employs a setup similar to its first E V12 800. We designed a carbon-fiber ram air collector system that sits between the hood and grille and feeds air to a custom high-flow filter box for each cylinder bank with 45 percent more area than stock, Gander says. When the hood is closed, these boxes are sealed and so [they] maximize air pressure.
Carbon-fiber pipes feeding air on the turbochargers will also be larger in diameter and, like the intake pipes, are covered in the gold heat-reflecting material. We did a lot of testing to optimize the intake and charge-air pipe diameters, Gander says. With the higher airflow and bigger turbos, we had significant loss under-pressure using the standard pipework, therefore we had to go larger to lessen power loss. It is always a balancing act. Power starts to fall off again.”” if you go too big””
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The stock housing of each turbocharger unit is internally machined to take a larger compressor wheel, then placed on a custom exhaust manifold with larger-diameter pipes made as close to equal length as possible inside the confined space of the engine bay.
Unlike some tuners whose conversions are only built to meet current EU emissions laws, Brabus always aims to fulfill a similar emissions standards as the factory product. The 850 engine is therefore homologated to EU6 standards. To do this necessitates the latest sport catalytic converter technology, and Brabus worked with an OE supplier to get a 400-cell metal unit with double the reactive surface area, yet with no more backpressure in comparison to the 200-cell units used before. At 3 inches in diameter, the downpipes are bigger than stock and each cylinder bank sends its gases to the rear through a pipe .04 of yourThis all results in a huge jump in output from the stock 585 hp at 5800 rpm and 663 lb-ft of torque between 2250 and 3750 rpm, to 850 hp at 5400 rpm with 847 lb-ft of torque from 2500 to 4500 rpm. The dyno actually saw 1069 lb-ft of torque, but this has been dialed back electronically to protect the drivetrain.
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Nevertheless, the seven-ratio Speedshift MCT transmission is beefed as much as ensure long-term reliability, and Brabus added a limited-slip differential with 40 % locking. This partnership dispenses torque-to-tarmac efficiently enough to make certain a sprint from standstill to 62 mph within just 3.5 seconds. Top speed is restrictedan instant feeling of immense power and torque. The typical S63 AMG is a snarling beast in the smart suit. With its exhaust valves open, the 850 iBusiness does nothing to disguise an even more aggressive nature. Activating those valves (at the touch of a button) will dampen things down a lttle bit, but there’s no hiding the ferocity under the hood that seems to be biding its time until the driver opens the throttle again.
Step about the gas as well as the car lunges for the horizon with a fervor that made me thank Mercedes-Benz for its excellent self-leveling Airmatic suspension. The very last time I experienced anything similar, there seemed to be a big Brabus twin-turbo V12 involved. Now this lighter and smallerIf the exterior looks imposing, a lavishly appointed, handcrafted cabin exudes an expert wielding of color and texture that complements countless luxurious details. The finest soft hides in tobacco and snow-white leather, with matching tobacco headlining in Alcantara, result in a strong contrast with the metallic black paintwork. The almost-black carbon-fiber inlays have a hint of dark brown, harmonizing nicely using the leather.
To sit in the rear compartment is to experience one of several two seats that can be either mission control for business deals or an entertainment center on the move. All major functions here are controlled by the iPad mini or iPod touch. The holder for the former is incorporated in the drop-down central armrest; a cradle in the center console accommodates the second.
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You will find three video screens in the back. The 2 behind the front seats are factory units. Brabus supplements these by using a 15.6-inch monitor that descends coming from a specially made compartment in the headlining. This is certainly part of the iBusiness package, whose core is a Mac mini stored in a motorized drawer built into the under-shelf section of the trunk. Audio from the Mac mini and Apple TV is routed to the excellent Burmester speakers.
A Brabus remote app activates the ceiling-mounted monitor, switches the Mac mini on and off, controls the video source (Apple TV or DVD) and the opening and closing of the drawer in the trunk. An onboard WLAN router sets up a hotspot, and all sorts of Internet-connected products arehardware and software. However, thanks to 3G and 4G cell phone technology, along with the superior connectivity of Apple’s ecosystem, we can reach out and touch the entire world more easily while on the move.
The Brabus 850 6. Biturbo iBusiness is just not the only vehicle in the world to be equipped so comprehensively with entertainment and business tools, but you can bet it will be the quickest of its kind for quite some time ahead.