2021 BMW M850i

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2021 BMW M850i Complete In-depth Review & Buying Guide

Updated on: August 11, 2020
Adarsh Sharma's image

Adarsh Sharma

Automotive Journalist

The BMW 8 Series is one of the most iconic sports cars in the segment with pinnacle craftsmanship, sensational performance, sporty drive, and advanced tech amenities. The latest 2021 model of the M850i is expected to get more power, the option of either a rear-wheel or all-wheel-drive system, handsome exterior design with sharper LED headlights, and impeccably crafted interior. The estimated price tag of the M850i is around $120,000 which is more expensive than the previous year model and has got more color options and minor tweaks to give it a refreshed look. The current model comes in only one trim which is priced at $112,400 and offers almost everything a buyer desires at this price bracket.

See detailed review »


Plenty of might from twin-turbo V-8

Pleasure drive with extravagant ride quality

Elegant Interiors


Poor front headroom and cramped rear

Clumsy navigation software

What's New?

More or less the same car

Might see a little price bump

Pictures & Videos

2021 BMW M850i Review video
2021 BMW M850i Interior video


2021 BMW M850i in Almandine Brown Metallic color 2021 BMW M850i in Alpine White color 2021 BMW M850i in Black Sapphire Metallic color
Almandine Brown Metallic

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.

Trims and Configurations


2021 BMW M850i Base


523 hp @ 5500 rpm
Twin Turbo Premium Unleaded
2 combined


Style Prices MPG Engine Transmission Drivetrain Seats Colors
xDrive 2dr Coupe AWD (4.4L 8cyl Turbo 8A) Starting at $111,900 MSRP (18/2/25) 523 hp @ 5500 rpm, 4.4 L, V-8, Twin Turbo Premium Unleaded
8-Speed Sport Automatic all wheel drive 4

Expert Review

The current BMW 8-Series is available in two options, the coupe and the convertible with responsive powertrain, high agility, and stylish sports appeal. The regular coupe packs an inline-6 engine making around 335 ponies, If you are looking for a meaner performance-focused machine, the M850i is the one to go for. The muscle coupe holds a twin-turbo V8 engine churning about 523 horses and shows uncanny accelerating abilities. With sports exterior detailing and upscale interiors, the M850i stands out in the segment.

Today, the sedan faces stiff competition from the likes of segment leaders like the Lexus LC 500, Mercedes-AMG S 63, and the Porsche 911 Carrera. Here’s our take on the 2021 BMW M850i that’s soon going on sale in early 2021.

2021 BMW M850i Coupe Front View
2021 BMW M850i Coupe Rear View

2021 BMW M850i Features

The BMW M850i is equipped with loads of latest features and amenities. The exterior design statement of the Coupe is more appealing with the bigger front grille, sharper LED headlight design, massive alloy wheels, and dynamic bodyline. 

The interior gets an abundance of standard features with the latest tech advancements and connectivity options. The BMW 8-Series is available in two formats, the Coupe and Convertible. Further, each gets an M edition with more power, more aggression, and sportier styling. The 2021 model line-up of the 8-Series is expected to get the same models with minor tweaks and improved ergonomics.


BMW M850i


$112,400 (exp.)

Key Features

Twin-Turbo V8 engine


Eight-speed Automatic transmission


M Carbon Ceramic brakes


12.1-inch Digital Gauge cluster


Heated and ventilated front seats with power-adjustments


16-speaker premium audio system by Harman Kardon


Advanced safety features and driver aids like Forward-collision warning, adaptive cruise control, and blind-spot monitoring

The BMW 8-Series is available in two design fronts, the Coupe and the Convertible edition. Both get high-performance M versions with bigger engines and sportier styling.

The M850i of the line-up features a massive 4.4 Liter twin-turbo V8 engine driving the car with more than 523 horsepower. The latest M850i gets new color options, premium upholstery options, and improved interior to give the Coupe a refreshed look. Moreover, advanced safety systems and driver aids ensure the complete safety of the passengers at all times.

2021 BMW M850i Maintenance, Reliability and Warranty

Backed with world-class engineering standards, exclusive material selection, latest design concepts, and new innovations, BMW has earned its name for crafting highly reliable cars. The German automaker has inculcated the latest safety features, cutting edge manufacturing techniques, and robust material selection to deliver the best-in-class reliability and performance. The latest version of the BMW M850i has been highly acclaimed by top rating agencies including J.D. Power report, NHTSA, and IIHS.

Reliability and Ownership Costs

Since the launch of the BMW 8-Series Coupe, the car has been in the top 10 sports coupe cars. With incredible performance deliverance, awestruck dynamic body, modern interiors with premium leather upholstery, and sports trimming, the new BMW M850i has marked its place high and bright

To get a price idea, we can get the stats from the 2020 BMW 8-Series. The M850i has been tagged at an MSRP of $122,395. Regions including Montana, New Hampshire, Oregon, Atlanta, and Delaware enjoy the lowest prices as they have exempted the sales taxes. The estimated price for a few regions is mentioned below.









New Jersey




The BMW 8-Series is a perfect companion for your much-awaited long weekend getaway. With advanced safety systems and driver aids, the built quality of the car is reassured. BMW offers hassle-free servicing of its fleet with regular follow-ups.

In terms of ownership on an average, the BMW M850i will want you to splurge $125,000 nearly in 5 years which is expensive but totally worth the package if sheer performance and luxury.

Starting with cutting edge manufacturing methods and modern tech amenities, the BMW 8-Series stands to its name. BMW Group is highly renowned when it comes to providing highly reliable cars with high-performance abilities and passenger safety. Maintenance of the 8-series is hassle-free with infrequent repairs and long-lasting quality.


Year 1

Year 2

Year 3

Year 4

Year 5























Taxes & Fees




























Real Cost to Own







In terms of the ownership costs, on an average, you will have to shell out nearly $104,300 in 5 years when you buy a brand new BMW M850i. This is no cheap amount but considering the tech and the array of advanced features the sedan offers, you should be prepared to spend a hefty amount maintaining the car especially if you want to own it for longer than 5 years.


BMW offers a long term warranty period for its fleet with hassle-free servicing and roadside assistance package. The new BMW M850i gets a warranty period of 4 years or 50,000 miles whichever comes first which is the best-in-segment. Moreover, an additional two years or 26,000 miles of complimentary scheduled maintenance is offered to the customers.



Limited Warranty

4 years/ 50,000 miles; whichever is earlier

Powertrain Warranty

4 years/ 50,000 miles; whichever is earlier

Complimentary Scheduled Maintenance

3 years/ 36,000 miles; whichever is earlier

BMW offers the best-in-class warranty with a long-time warranty. Highly reliable design and material usage assure infrequent repairs. Complimentary servicing is also offered with the package. The limited warranty as well as the additional warranty is quite at par with the German rivals with the Mercedez-Benz charging the most for an additional warranty.

Miles per Dollar

When it comes to fuel economy and per-mile costs, the new BMW M850i is ahead in this game. With an impressive fuel efficiency of about 28 MPG combined figure, the cost per mile is about $0.10 (w.r.t current gas price).

2021 BMW M850i Buying Advice

If you are looking for a performance Coupe with sensational acceleration and modern styling. An abundance of standard features is added in the cabin of the M850i with sports trimming and impeccable detailing. The seating arrangement in the car is premium with leather wrapping and multiple power adjustments. The latest infotainment setup with a premium audio system is added for the music lovers.

The new BMW M850i has been in the top ten Coupes for a long time with consistent performance deliverance and high quality. Advanced safety systems and driver aids have been added for ensuring the complete safety of the passengers. The Coupe has been highly acclaimed by top rating agencies like J.D. Power report, NHTSA, and IIHS.

Is buying a used BMW M850i a good idea?

The value of the M850i is retained after years of usage with low depreciation. Thanks, to the high quality built and top-notch reliability. For the first year, the M850i tends to lose between 10% to 12% of its value which comes at around $10,000. The maintenance costs are quite competitive with infrequent repairs which further increases the resale value of the car.

The total fitness of the BMW M850i is around 10 years with a couple more depending on usage. The 2021 model is expected to get the same underpinnings from the 2020 model with additional color options and minor tweaks.

2021 BMW M850i Engine and Performance

The 8-Series of the BMW is loaded with top-notch powertrain featuring massive engines and a highly efficient transmission system. The M850i gets a massive 4.4 Liter Twin-Turbo V8 engine clubbed with an 8-speed Automatic Transmission system belting out around 523 horses and 553 lb-ft. of torque. The M badged models of the8-Series are more of a performance model. The signature BMW all-wheel-drive configuration improves traction and agility around corners. Even though the car is known for its sheer luxury and comfort, it is quite capable to set a lap record over a track as well.

2021 BMW M850i Coupe Engine

The 4.4-liter engine is a complete workhorse and offers a buttery smooth refined experience. the NVH levels are very well contained and the gearbox works in perfect tandem with the engine to provide a jerk-free experience. Putting the car into sports mode offer quite a lot of performance and it is a luxury sports car that can put a big smile on anyone’s face. The 2021 model shall get the same engine and hence shall offer the same performance. 


2021 BMW M850i 

2020 Lexus LC 500

2020 Mercedes-AMG S 63

2020 Porsche 911 Carrera







4.4L Twin-Turbo V8

5.0L V8

4.0L Bi-Turbo V8

3.0L Twin-Turbo Flat-Six







8-speed Automatic

10-speed Automatic

9-speed Automatic

8-Speed Automatic


523 ho @ 5,500 rpm

471 hp @ 7,100 rpm

603 hp @ 5,500 rpm

443 hp @ 6,500 rpm


553 lb-ft @ 1,800 rpm

398 lb-ft @ 4,800 rpm

664 lb-ft @ 2,750 rpm

390 lb-ft @ 2,300 rpm

While interpreting the above data, the most powerful of the lot is the AMG S 63 with over 600 horses of power output. Next comes the BMW M850i with over 523 horsepower from a massive 4.4 Liter V8. Other competitors like the Lexus LC and Porsche 911 also show incredible performance stats with insanely high-speed abilities.

2021 BMW M850i Acceleration and Braking Performance

The latest edition of the BMW M850i is packed with a massive 4.4 Liter Twin-Turbo V8 engine, immense power is generated to shoot the car from 0-60 mph in 3.6 seconds. Constant performance is assured with a quarter-mile cover in 12.0 seconds and a top speed of about 155 mph. This is quite an impressive figure for a car of its size and weight. As staggering the performance numbers of the 8-Series is, the braking performance is equally high performing with 4-wheel brake disc setup and 4-wheel ABS control.

2021 BMW M850i Coupe Accelerate 0-60 MPH in 3.6 sec

The new design concepts further improve the dynamic stability of the Coupe and high agility around corners.


2021 BMW M850i 

2020 Lexus LC 500

2020 Mercedes-AMG S 63

2020 Porsche 911 Carrera

0-60 (seconds)





Quarter-Mile (seconds)





Top Speed (mph)





60-0 (ft.)





One of the best accelerating abilities is shown by the BMW M850i with insanely high-speed abilities and quick drag timings. Competitors like the AMG S 63 and 911 Carrera delivers super high-speed abilities of over 190 mph. However, all cars are quite capable of offering a proper push back feeling if you go pedal to the metal style.

2021 BMW M850i Fuel Economy

With a massive 4.4 Liter V8 engine under the hood and sensational performance figures, the fuel economy of the sports Coupe is at par with the segment. The new BMW M850i delivers a combined fuel economy of around 20 MPG. This is quite decent considering the segment and is easily among the best in its class. Also, the fuel tank capacity is decent which delivers a sufficient range for a long weekend getaway. The 2021 model shall continue to offer the same fuel efficiency due to no changes in the engine department.


2021 BMW M850i 

2020 Lexus LC 500

2020 Mercedes-AMG S 63

2020 Porsche 911 Carrera

MPG (City)





MPG (Highway)





MPG (Combined)





Fuel Capacity





Range (City/Highway/Combined; Miles)





The new Lexus LC gets the largest tank with impressive highway range and sharp features. On the other hand, the BMW gets the best-in-class mileage but gets a hit in range due to a smaller fuel tank. The Mercedes S 63 gets a similar fuel tank as the LC with better-combined efficiency. Overall, the segment can be a good choice for both long ride stints as well as short commutes.

2021 BMW M850i Interior

The interior space of the M850i has got impeccable attention to detail from BMW. The cabin stays to its true purpose of offering sheer luxury experience in a sports Coupe. With plush seating and loads of sports trimming, the maturity of the car is clearly displayed. The driver gets to adapt in different driving styles at their will with numerous modes and features. 

The seating capacity of the car is four occupants. Ample space is offered for the passengers including enough legroom, shoulder room, and somewhat hindered headroom for the Coupe model. The front seats get three-stage heating and ventilating features. The headrest as well as armrest comes with a heating feature. 

2021 BMW M850i Coupe Cockpit Area

The convertible version gets the luxury of infinite headroom though. The dashboard design is kept at minimal with a full-leather covering, giving it an elegant look. Cargo space is also taken care of with the best-in-class dedicated room and multiple small-item storage options.


2021 BMW M850i 

2020 Lexus LC 500

2020 Mercedes-AMG S 63

2020 Porsche 911 Carrera

Seating Capacity





Front Row (Headroom/Shoulder Room/Legroom; inches)





Rear Row (Headroom/Shoulder Room/Legroom; inches)





As we can clearly interpret, the BMW M850i features a spacious cabin for four occupants. The headroom is somewhat compromised due to design commitments but is not a huge problem. 

Competitors like the Mercedes AMG S 63 get the most spacious interior with ample space for both front and rear passengers. When it comes to cargo room, the BMW M850i gets the maximum cargo volume enough for a long weekend getaway.

Infotainment system

The new line-up of the BMW 8-Series is packed with excitement, featuring the latest range of infotainment setup, premium audio system, high-tech connectivity options, and loads of interior amenities. 

The intuitive infotainment setup features the latest iDrive system with smart fusion touchscreen display, voice recognition, a premium 16-speaker audio system by Harman Kardon, Sirius XM satellite radio with a 1-year subscription, latest connectivity options like Apple CarPlay, Wi-Fi Hotspot, and Bluetooth. 

2021 BMW M850i Coupe Infotainment System

The Connected Professional package includes real-time traffic indicators, Hazard preview, and connected services. Overall, the cabin of the M850i gets tons of options to explore and keep you engaged on the go.

2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image
2021 BMW M850i Coupe Interior Image

2021 BMW M850i Exterior

The overall exterior appeal of the new BMW M850i is muscular with intimidating sharpness and sculpted body. Showcasing both power and elegance at the same time is tough, but the 8-Series pulls it off like a cake. 

Its bulging hood lines with bold shoulders goes well and gives the car a sharper look. The elegant and modern LED headlight design upscale the overall sports vibe of the car along with massive alloy wheels and signature BMW front grille which is sleeker this time favoring the overall design of the Coupe. 

The body length is long with a wide wheelbase and track-ready performance vibes. The aerodynamic fittings including the M rear spoiler, M carbon roof, and Twin exhaust system level up the appeal of the sport of the Coupe.


2021 BMW M850i 

2020 Lexus LC 500

2020 Mercedes-AMG S 63

2020 Porsche 911 Carrera

Curb Weight (lbs)





Length (inches)





Width (inches)





Height (inches)





Ground Clearance (inches)





Wheelbase (inches)





The BMW 8-Series is not the lightest of the lot due to obvious reasons. Though, this does not affect the sleeker looks of the car with a lengthy body and wider wheelbase. 

The ground clearance of the car is enough for all-terrain performance. Competitors like the Mercedes AMG S 63 are brawny inside pout with muscular traits. Porsche 911 takes a clever route with a compact body structure and a subtle approach.

2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image
2021 BMW M850i Coupe Exterior Image

2021 BMW M850i Safety

The BMW 8-Series line-up has earned its name in the segment by offering advanced safety systems, utmost reliability backed with German engineering, and better high-speed stability with new design improvements. 

The new 2021 8-Series is expected to get similar features of the 2020 model. With a 6-airbags package, Rollover Protection System, Active guard with Frontal Collision Warning, Adaptive Cruise control, and many more. Additional features like a rearview camera, Anti-theft alarm system, BMW Assist eCall, and Adaptive Led headlamps with Laserlight are also added.

2021 BMW M850i Competition

2021 BMW M850i vs 2020 Lexus LC 500

When it comes to performance, both cars show incredible performance numbers. The LC 500 houses a bigger 5.0 Liter engine compared to the M850i’s 4.4 Liter V8. The exterior design of LC 500 is futuristic when compared to the muscular and sporty body of the 8-Series. The Interior space of both cars is similar to a minimalistic approach and genteel material usage.

2020 Lexus LC 500

2021 BMW M850i vs 2020 Mercedes-AMG S 63

The AMG S 63 is a pure performance machine with insanely high-speed abilities and an elegant design approach. On the other hand, the BMW 8-Series is a balanced ride of performance, luxury, and style. The interior space of both cars is appealing with sporty accents and plush seating.

2020 Mercedes-AMG S 63


2021 BMW M850i Final Verdict

If you are looking for a balanced ride with staggering performance, best-in-class luxury elements, sporty exterior design with M badging and fittings, and advanced safety features and driver aids, then the new BMW M850i can be a good choice. 

The M badging drives the extra adrenaline with a much powerful 4.4 Liter Twin-turbo V8 engine and exterior sports finishing. The interior cabin gets a minimalistic approach with a leather-wrapped dashboard and the latest infotainment setup. The 2021 model of the 8-Series is expected to get new color options and minor exterior tweaks which will give a refreshed look to the Sports Coupe.