Skip advert
Advertisement

New Brabus 850 brings V12 power to the Mercedes S-Class

The 838bhp 850 is based on the luxurious Mercedes-Maybach S 680

Brabus isn’t known for doing things by halves and neither is Maybach, so it shouldn’t be too surprising the result of the two companies' work results in this: the new Brabus 850. 

Using the V12-powered Mercedes-Maybach S 680 as a base (which already has a potent 621bhp), Brabus set to work tweaking the engine to produce 838bhp and 1,100Nm of torque – making it the most powerful S-Class in the world.

Advertisement - Article continues below

That’s even more power than the new Mercedes-AMG S 63 E Performance with its 792bhp twin-turbo 4.0-litre V8, and it’s down to an extensive redesign of the powertrain. Displacement has grown from 6.0-litres to 6.3, while Brabus has fitted new turbochargers and forged internals, with enlarged air intakes to ensure it all stays at optimum temperatures. 

All this power is sent through a nine-speed automatic transmission to all four wheels and to make sure the occupants and passers-by are aware of the Brabus 850’s monstrous powerplant, there’s a new high-performance exhaust system. 

Acceleration improves from the S 500’s 4.7-second 0-62mph time to 4.1 seconds. Top speed is limited to 155mph. Despite the extra oomph, drivers will have to put their faith in the regular Mercedes S-Class braking set up, although airflow to the brakes has apparently been improved. 

Setting off the look of the Brabus 850 is a set of 22-inch forged wheels, a carbon package with either a high-gloss or matte finish, plus a new front lip spoiler and rear diffuser. The air suspension has been adapted to sit 20 millimetres lower “without compromising any of its outstanding ride comfort” according to Brabus. 

The carbon theme continues inside with the steering wheel, dashboard centre console, pedals and door cards all trimmed in carbon fibre. Customers are able to specify a range of interior colours and finishes, with standard-fit ‘Brabus’ badging dotted throughout the cabin. 

The Mercedes-Maybach S 680 costs from £217,200 in ‘First Class’ trim but the Brabus 850 should easily eclipse this, as we expect it to retail closer to the £400,000 mark. 

Have a taste for the finer things? These are the best luxury cars you can buy...

Skip advert
Advertisement
Alastair Crooks, Staff writer Auto Express
Senior news reporter

A keen petrol-head, Alastair Crooks has a degree in journalism and worked as a car salesman for a variety of manufacturers before joining Auto Express in Spring 2019 as a Content Editor. Now, as our senior news reporter, his daily duties involve tracking down the latest news and writing reviews.

Skip advert
Advertisement

Recommended

Best luxury cars to buy 2026
Best luxury cars - August 2026 header image

Best luxury cars to buy 2026

Indulge yourself with our list of the best luxury cars on sale today
Best cars & vans
11 Aug 2026
Mercedes-Maybach GLS revealed with “otherworldly” levels of luxury
Mercedes-Maybach GLS - front 3/4

Mercedes-Maybach GLS revealed with “otherworldly” levels of luxury

Hold off on that Bentley Bentayga order, the 2026 Maybach GLS has just been revealed
News
21 Jul 2026
New Mercedes S-Class 2026 review: flashy and luxurious, but so is an E-Class
Ellis Hyde and the Mercedes S-Class

New Mercedes S-Class 2026 review: flashy and luxurious, but so is an E-Class

The new Mercedes S-Class is as luxurious as you'd expect, but it features tech already seen on lesser models in the brand's range
Road tests
12 May 2026
New Mercedes-Maybach S-Class is an ultra-extravagant Rolls-Royce rival
Ellis Hyde with the Mercedes-Maybach S-Class

New Mercedes-Maybach S-Class is an ultra-extravagant Rolls-Royce rival

The grandiose Mercedes-Maybach S-Class limousine is still available with a V12 engine in certain markets, but over here the highlight will be a new V8
News
24 Mar 2026

Most Popular

New Volvo XC60 PHEV boasts a whopping 124 miles of EV range
Volvo XC60 facelift 2026 - Ellis Hyde

New Volvo XC60 PHEV boasts a whopping 124 miles of EV range

The Volvo XC90 also gets the new plug-in hybrid powertrain, with the large SUV capable of 99 miles of pure electric range
News
15 Sep 2026
New Volkswagen ID.3 GTI: the most powerful GTI ever has arrived
Volkswagen ID.3 GTI - front

New Volkswagen ID.3 GTI: the most powerful GTI ever has arrived

Rear-wheel drive, over 320bhp and a new GTI-mode bring the fire to VW’s ID.3 Neo
News
16 Sep 2026
Car Deal of the Day: super 373-mile Skoda Enyaq is a bargain for under £300 a month
Skoda Enyaq front tracking

Car Deal of the Day: super 373-mile Skoda Enyaq is a bargain for under £300 a month

The Skoda Enyaq is easily one of the best electric SUVs money can buy. It’s our Deal of the Day for 15 September
News
15 Sep 2026

Find a car with the experts