BRABUS 850 XL based on Mercedes-AMG GLS 63

Article by Christian A., on October 5, 2016

Since some customers prefer a car that is both super strong and extra-large, BRABUS decided to focus on Mercedes-Benz’s GLS-Class top model which is the GLS 63 4MATIC. This has resulted in a supercar that best symbolizes BRABUS and is called the BRABUS 850 XL. Powering it is the eight-cylinder twin-turbo engine with displacement increased by six liters.

Maximum output is at 838 bhp (625 kW/850 HP) with peak torque of 1,069 lb.-ft. (1,450 Nm). In terms of power, this is higher by 261bhp (195 kW/265 HP) when compared to the engine in the previous model. Acceleration from zero to 62 mph (100 km/h) is possible in 4.2 seconds despite having a weight of 2.6 tons.

However to ensure safety, its maximum speed has been electronically limited to 186 mph (200 km/h). With the power output possible at 5,400 rpm and toque coming in from 2,500 rpm and up to 4,500 rpm, its performance is indeed closer to a full-blown sports car.

For those may not want to spend that much, BRABUS is offering owners of GLS 63 4MATIC two upgrades with the first an increase to 622 bhp (464 kW/630 HP) and the second at 690 bhp (515 kW/700 HP). With this amount of performance, it made it necessary to make some changes to the chassis, tires, and even aerodynamics.

Exterior Design

The designers made sure that the components for the bodywork would look amazing and be aerodynamically efficient. It is composed of advanced carbon material and offered not just for the BRABUS 850 XL, but for all models of the GLS 63.

Its rear fascia for instance has been improved with a carbon diffuser insert added in and this give an excellent setting for its high-performance exhaust’s two dual tailpipes. Rounding up the rear is the roof spoiler.

Since the front spoiler lip has been placed on the bumper’s lower portion, it gives this amazing SUV a look that is even more striking. Optimized in its wind tunnel, the shape allows for the lift in its front axle to be lowered, especially when running at high speeds, and therefore enhance the handling stability.

Helping with the aerodynamics as well are the customized air deflectors incorporated with the LED side markers. These enhance the side air intakes located on the front bumper. Going back to its power unit, the engineers at BRABUS made sure to give it their all and the results are impressive.

They worked on the principle that an engine that has more displacement will also have more power. This is why the 4-valve 8-cylinder engine’s displacement was increased to 361 cu. in. (5,912 cc) from 333 cu. in. (5,461 cc). A main part of the engine bay is the intake module for the BRABUS 850 which is not only made up of carbon but was designed for the higher-displacement engine.

Complementing this are two air filter boxes that comes with an intake cross-section that is larger. Meanwhile the use of the advanced carbon air ducts ensures that the intake gets fresh combustion air.

That the BRABUS 850 XL is immediately recognized as a high-performance 4x4, is due to some components being improved aerodynamically and that have a naked carbon finish. Helping as well is the personalized BRABUS forge Monoblock high-tech 23-inch "PLATINUM EDITION" wheels. While alloys used by BRABUS for the GLS 63 have different sizes and designs with some having diameters from 21 inches and up to 23 inches, the "PLATINUM EDITION" is sized 11J x 23, making it the most exclusive choice in the market.

The wheels being able to deliver on an excellent mix of maximum strength and lightweight construction is mainly due to the highly-advanced manufacturing technology. In order to ensure that it will be equipped with the high-performance tires, BRABUS made sure to enter into partnerships with YOKOHAMA, Pirelli, and Continental.

GLS 63 4MATIC itself can be equipped with street tires as large as 295/35 R 23. Meanwhile for the chassis, the engineering team decided to include a special control module for its AIRMATIC air suspension in order to maximize the driving dynamics.

Since the ride height has been lowered by as much as 1.2 in. (30 mm) compared to the prior model, it has an appearance that is more athletic. Another important element of its performance upgrade is the new forced induction system.

Modified exhaust manifolds were developed to make sure that the engine could be equipped with larger compressor units and special BRABUS turbochargers. In order to help lower the charge air temperature, its charge pipes and intake tubes have the Gold Heat Reflection sheathing, which can be immediately seen. Since the displacement of the engine was increased, this meant there had to be metal catalysts and downpipes as large as 2.95 in. (75mm) in diameter.

Completing the changes is the high-performance stainless exhaust system that has exhaust flaps which can be controlled actively to ensure active sound management. With just the press of a button placed in the cockpit, drivers are able to switch between two modes. There is the Coming Home mode which is like a discreet whisper and the Sport mode with the V8 emitting that wonderful exhaust note.

The BRABUS 850 XL is able to stand apart from the rest with its tailpipes which have been coated in ceramic and has the BRABUS logo. The high-performance parts of the power unit have been calibrated perfectly by the engineering team and the electronics specialists through the conduct of extensive road test and bench test. Because of how the work is professionally done, the BRABUS 850 XL does not only have an amazing power output but also has a service life that will last for some time.

As such it has the three-year warranty or the 62,000-mile/100,000-km Tuning Warranty from BRABUS.

Interior Design

While the exterior is indeed excellent, the design of its interior makes it exclusive as well. Its main attraction is the fine leather interior finished with each detail showing amazing craftsmanship. Much like the luxury appointments experiences on my of the supercars coming from BRABUS, it also has that fine leather interior. The appointments in the interior can be personalized based on what the customer wants like combining Alcantara with the breathable and soft mastic leather.

For the BRABUS 850 XL being shown, it has the all-leather interior highlighted by the amazing braided-leather and contrasted through a black paint finish. Similarly, the Checkered Flag carbon elements seen on the cockpit have been color-coordinated as well with the leather.

The vehicle featured here is fitted with a brown BRABUS all-leather interior with especially gorgeous braided-leather highlights to contrast with the black paint finish. The likewise brown BRABUS 'Checkered Flag' carbon elements in the cockpit are also color-coordinated with the leather. Since there are plenty of combinations for the carbon or wood inlays, this allows it to have that personal touch.

And since the door pins and pedals are made of aluminum, it puts more attention on the fact that this vehicle has sporty characteristics. Since the automatic 7G-TRONIC SPEEDSHIFT PLUS transmission can be managed manually, the use of special aluminum paddle shifts that have the RACE design ensures precision in gear changes. While the BRABUS 850 XL is custom-built, it is possible to transform the GLS 63 to this version, either in different stages or everything at once.

Press Release

BRABUS 850 XL based on the Mercedes-Benz GLS

Some like it extra-large and super strong: That is why BRABUS has now directed its attention to the top-of-the-line model of the new Mercedes GLS-Class, the GLS 63 4MATIC. The result is a supercar that could not be more representative of BRABUS. At the heart of the BRABUS 850 XL is a twin-turbo eight-cylinder engine with an increased displacement of six liters. An output of 625 kW / 850 HP (838 bhp) and a peak torque of 1,450 Nm (1,069 lb-ft) sling the exclusive SUV from rest to 100 km/h (62 mph) in a mere 4.2 seconds. In the interest of tire safety, the top speed is limited electronically to 300 km/h (186 mph).

Aerodynamic-enhancement components with a naked carbon finish and tailor-made 23-inch BRABUS Monoblock "PLATINUM EDITION" hi-tech forged wheels lend the high-performance 4x4 unmistakable looks.
The customization of the interior is just as exclusive, and features a BRABUS fine leather interior finished with consummate craftsmanship in every detail.

The BRABUS 850 6.0 Biturbo increased-displacement engine pumps out a phenomenal 195 kW / 265 HP (261 bhp) more than the underlying stock engine. The effort the BRABUS power unit engineers expend for this power upgrade is tremendous: more displacement translates into more power, and for this reason the company hi-tech engine shop increases the displacement of the eight-cylinder four-valve engine from stock 5,461 cc to 5912 cc (333 to 361 cu in).

To this end, the cylinder bore is increased to 99 millimeters (3.89 in) and the engine is fitted with correspondingly larger forged pistons. A special precision-balanced billet crankshaft in concert with forged high-performance piston rods increases the stroke to 96 millimeters (3.77 in). In addition, the engineers optimize the two cylinder heads of the V-8 for mixture flow.

The engine bay is dominated by the BRABUS 850 intake module, which is manufactured from carbon and is specifically designed for the BRABUS increased-displacement engine. It is complemented by two newly designed air filter boxes with larger intake cross-section. Sophisticated carbon air ducts supply the intake with fresh combustion air.

Just as crucial for the phenomenal performance upgrade is the newly designed forced induction system: the engineers developed modified exhaust manifolds to fit the engine with special BRABUS turbochargers with larger compressor units. To lower the charge air temperature, the intake tubes and charge pipes are fitted with special "Gold Heat Reflection" sheathing that stands out immediately.

The increased-displacement engine also includes larger downpipes with a diameter of 75 millimeters (2.95 in), and metal catalysts. The last link in the chain is the BRABUS stainless high-performance exhaust system with actively controlled exhaust flaps for an active sound management. Drivers can switch between a throaty V-8 exhaust note in 'Sport' mode and a discreet whisper in 'Coming Home' mode at a touch of a button in the cockpit. The ceramic-coated tailpipes sport the BRABUS logo and stand out from the crowd visually as well.

The perfect calibration of all high-performance components by the BRABUS power unit engineers and electronics specialists is the result of extensive bench and road tests. The professional execution of all work ensures not only an optimal power output, but also a long service life beyond reproach. BRABUS vouches for this with the exemplary three-year or 100,000-km/62,000-mile BRABUS Tuning Warranty.

BRABUS recommends high-performance lubricants from MOTUL.

The huge amount of work is reflected in unrivalled performance figures: a power output of 625 kW / 850 HP (838 bhp) at a low 5,400 rpm is equally a benchmark in this category of vehicles as is the phenomenal peak torque of 1,450 Nm (1,069 lb-ft), which is on tap on a flat plateau between 2,500 and 4,500 rpm.

As a result, the BRABUS 850 XL delivers a performance on par with a full-blooded sports car: From rest, the SUV weighing in at more than 2.6 tons accelerates to 100 km/h (62 mph) in just 4.2 seconds. Due to tire limitations, the top speed has to be capped electronically at 300 km/h (186 mph). BRABUS also offers two performance upgrades to 464 kW / 630 HP (622 bhp) or 515 kW / 700 HP (690 bhp) for GLS 63 owners disinclined to spending quite this much on engine tuning.

Of course, the aerodynamics, tires and chassis of the BRABUS 850 XL are also modified to match the tremendous performance. The BRABUS designers developed aerodynamically efficient and great-looking bodywork components made from hi-tech carbon material, which are available not only for the BRABUS supercar, but for all GLS 63 models.

The BRABUS front spoiler lip, which attaches to the lower part of the bumper, lends the SUV an even more striking face. What is more: The shape was optimized in the wind tunnel and reduces lift on the front axle at high speeds for further improved handling stability. Tailor-made air deflectors with integrated LED side markers upgrade the side air intakes in the front bumper.

The rear fascia is upgraded with a new carbon diffuser insert, which provides the perfect backdrop for the two dual tailpipes of the BRABUS high-performance exhaust. The BRABUS roof spoiler adds the icing to the cake.

BRABUS alloys for the GLS 63 come in various designs and sizes with diameters from 21 to 23 inches. BRABUS Monoblock "PLATINUM EDITION" hi-tech forged wheels of size 11Jx23 represent the most exclusive option. Thanks to state-of-the-art manufacturing technology, these wheels offer a perfect combination of lightweight construction and maximum strength. BRABUS technology partners Continental, Pirelli and YOKOHAMA supply the matching high-performance tires. The GLS 63 can be fitted with high-performance street tires up to 295/35 R 23 in size.

The BRABUS chassis engineers developed a special control module for the AIRMATIC air suspension to optimize the driving dynamics further and to give the vehicle an even sportier appearance by lowering the ride height of the BRABUS 850 XL and any stock GLS 63 by about 30 millimeters (1.2 in).

The luxury appointments of the BRABUS supercars of course also include an exquisite BRABUS fine leather interior. The interior appointments are tailored to customer specifications from a combination of especially soft and breathable Mastik leather and Alcantara. The vehicle featured here is fitted with a brown BRABUS all-leather interior with especially gorgeous braided-leather highlights to contrast with the black paint finish. The likewise brown BRABUS 'Checkered Flag' carbon elements in the cockpit are also color-coordinated with the leather.

BRABUS wood or carbon inlays, which can be produced in every conceivable variation, add a particular individual note. Aluminum components such as pedals and door pins highlight the sporty character of the vehicle. BRABUS offers special aluminum paddle shifters with RACE design for even more precise gear changes when operating the SPEEDSHIFT PLUS 7G-TRONIC automatic transmission manually.

The BRABUS 850 XL is built to customer order. Alternatively, any GLS 63 can be converted to this specification all at once or in stages.

If you liked the article, share on:



The Mercedes-Benz G-Class is entering an all-generation in the 2019 model year. Renowned German tuner Brabus is giving the current generation 2018 G-Class a fitting goodbye with the new Brabus...
by - December 13, 2018
Carlex Design isn't a beginner with regards to tuning the Mercedes-Benz X-Class. In fact, it has even created a version with Maybach-like appearance and features. It has also created Off-Road-focused...
by - November 21, 2018
Alpina is releasing a new limited edition model that is essentially a more powerful and more appealing re-creation of the BMW 4 Series. This is the new BMW Alpina B4...
by - November 7, 2018
Not a few got excited when German premium carmaker Audi joined the luxury coupe-SUV segment with the all-new Audi Q8. This new SUV offers customers both the versatility of an...
by - November 2, 2018
A customer looking for a new Chevrolet Camaro is definitely up for the thrill. At the peak, this can be provided the Camaro ZL1, especially when installed with the 1LE...
by - October 19, 2018