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
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

New 2026 Mercedes S-Class facelift: luxury limo redefines car tech
Mercedes S-Class facelift - front

New 2026 Mercedes S-Class facelift: luxury limo redefines car tech

The definitive luxury limousine has been overhauled with significant changes inside, outside and under the metal
News
29 Jan 2026
Best diesel cars 2026
Best diesel cars - header image, January 2026 update

Best diesel cars 2026

Diesel power strikes a balance between performance and fuel economy, and these are the best diesel cars you can buy today
Best cars & vans
23 Jan 2026
New Mercedes S-Class facelift ride review: luxury limo gets some serious upgrades
Mercedes S-Class - front

New Mercedes S-Class facelift ride review: luxury limo gets some serious upgrades

New Mercedes S-Class with big V8 energy is almost here, and we’ve been for a ride in it
Road tests
15 Jan 2026
New electric Mercedes S-Class will replace the EQS… eventually
Mercedes EQS - front tracking

New electric Mercedes S-Class will replace the EQS… eventually

The next iteration of the S-Class will give its affluent customers the choice of combustion or electric power
News
5 Jan 2026

Most Popular

New 2028 Ford Fiesta: all the details on iconic supermini’s sensational comeback
Ford Fiesta render Avarvarii

New 2028 Ford Fiesta: all the details on iconic supermini’s sensational comeback

The new Ford Fiesta would get all-electric power and our exclusive image previews how it could look
News
12 Feb 2026
BMW recalls 25,000 UK cars over fire risk: Owners warned not to leave vehicles with engine running
BMW 3 Series - front tracking

BMW recalls 25,000 UK cars over fire risk: Owners warned not to leave vehicles with engine running

24,732 UK BMWs have been recalled due to an issue with the starter motor which could lead to short circuits and fires
News
12 Feb 2026
New Suzuki Across is a mirror image of the Toyota RAV4, once again
New Suzuki Across - dynamic front angled

New Suzuki Across is a mirror image of the Toyota RAV4, once again

The new Suzuki Across gets the latest plug-in hybrid system from its Toyota relative, but it's not coming to the UK
News
11 Feb 2026

Find a car with the experts