2019 BMW M850i Coupé G15 – all-new 8-Series top-model

BMW 8-series Coupe Flagship M850i to take on Porsche 911 Carrera 4 GTS 991.2 and Mercedes-Benz S560 Coupe C217. Words and photos by Jordan Katsianis.

BMW is bringing back the 8-series after an absence of nearly 20 years. The coupe you see here is just the beginning of the new line-up, which will later include convertibles and four-door Gran Coupes, with M8 variants available in all three body styles.

2019 BMW M850i Coupé G15

2019 BMW M850i Coupé G15

For now the two – door hard-top version offers a new option for buyers looking for a sophisticated yet still dynamic ally adept GT coupe. Topping the range at launch will be the BMW M850i xDrive G15, which at £100,045 looks to be a keen compromise between the 2019 Porsche 911 Carrera 4 GTS 991.2 and the more laid-back 2019 Mercedes-Benz S560 Coupe C217 / AMG S63 Coupe C217, both of which are priced around £103k. We’d also throw the £144k Aston Martin DB11 V8 into the mix. Here’s what the new 8-series Coupe G15 will bring to tackle its rivals.


At launch, two models will be available: an entry-level 840d xDrive G15 and the BMW M850i xDrive M Performance Coupe G15. The latter will utilise BMW’s venerable twin-turbocharged 4.4-litre V8. With 522bhp, the M850i concedes 70bhp to the current M5 F90, but it matches its 553lb ft of torque. The later M8 will, of course, address that power gap.

The 840d’s 3-litre in-line six-cylinder turbodiesel is borrowed from the 740d G11/G12 and produces 316bhp, backed up by 501lb ft of torque between 1750 and 2250rpm. It will accelerate from 0 to 62mph in 4.9sec – 1.2sec slower than the petrol car. Both models are limited to 155mph.


The new 8-series is built from a cocktail of materials designed to reduce weight and increase rigidity in strategic areas. Many of the body panels, plus the front and rear crash structures and the bulkhead, are aluminium, while the cockpit’s centre tunnel is carbonfibre. Nevertheless, the M850i’s G15 kerb weight is still a hefty 1890kg.

This is in part due to BMW throwing its full arsenal of chassis tech at the new 8-series, including xDrive all-wheel drive, rear-wheel steering and, optionally, active roll stabilisation. It’s worth noting that the M850i’s weight figure undercuts the Mercedes S560 Coupe’s C217 by 110kg.


Design chief Adrian van Hooydonk needed this new flagship mainstream model to purvey the ‘ideal’ BMW and point the way forward for the design of future models. While it’s not a s attention-grabbing as, say, an i8, the 8-series certainly looks imposing in the metal. Its slim LED or optional laser headlights are the thinnest yet fitted to a production BMW, while the car also features a downturned and conjoined kidney grille – the first time these two emerging design traits have been combined.

The roof has a subtle double-bubble effect, and the body a s a whole is a very deliberate exercise in creating a three-box coupe, shunning the trend of fastback coupes that have become commonplace.


The overall cabin architecture is simplified compared to that of the outgoing 6-series F06/F12/F13, but quality has been a key element, according to BMW, as well as incorporating all the latest interior tech. A particularly glamorous touch is the crystal-like gearshifter, which sits in a control centrelike arrangement alongside the i-Drive dial and chassis buttons.

Although still suitably sumptuous, the interior – like the rest of the car – is more driver-focused than that of the Mercedes S-class Coupe C217, as is emphasised by the centre stack being-angled acutely towards the driver. Its block y aesthetic could even be a gentle homage to the original 8-series E31 from 1989.

“BMW has thrown its full arsenal of chassis tech at the car, including x-Drive, rear-wheel steering and active roll stabilization”


Engine V8, 4395cc, twin-turbo

Max Power 523bhp @ 5500-6000rpm / DIN nett (metric)

Max Torque 553lb ft @ 1800-4600rpm / DIN nett (metric)

Weight 1890kg

Power-to-weight 281bhp/ton

0-62mph 3.7sec (claimed)

Top speed 155mph (limited)

Basic price £100,045

On sale November 2018

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Jean-Claude Landry
Jean-Claude is the Senior Editor at eManualOnline.com, Drive-My.com and Garagespot.com, and webmaster of TheMechanicDoctor.com. He has been a certified auto mechanic for the last 15 years, working for various car dealers and specialized repair shops. He turned towards blogging about cars and EVs in the hope of helping and inspiring the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.