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The 2023 BMW M8 Gran Coupe delivers 617 horsepower from its twin-turbo V8, accelerates to 60 mph in just 2.7 seconds, and offers four-door practicality in a stunning fastback design[1]. Originally priced at $135,095, used examples now trade between $72,252 and $85,000, representing exceptional value for supercar-level performance[2]. The Drive called it an explosive, ridiculous hooligan that gets the modern sport sedan formula just right, awarding it 9 out of 10[1].
Overview: Why the M8 Gran Coupe Matters
The BMW M8 Gran Coupe occupies a unique position in the high-performance four-door segment. Unlike conventional sedans, its dramatically swept roofline creates a coupe-like silhouette while maintaining genuine four-door practicality[3]. The car debuted in 2020 and received no significant changes for 2023, continuing with the Competition package as standard equipment.
For 2023, the M8 Gran Coupe started at $134,000 ($135,095 as tested by The Drive)[1][4]. Today, used examples have depreciated significantly, making this flagship more accessible than ever. Edmunds reports trade-in values ranging from $72,252 to $82,048, while dealer listings show asking prices between $83,500 and $115,000 depending on mileage and condition[2][5].
For buyers exploring the BMW lineup, the M8 Gran Coupe represents the pinnacle of non-hybrid performance sedans.
Specifications Overview
| Category | 2023 BMW M8 Competition Gran Coupe |
|---|---|
| Original MSRP | $134,000 (as tested: $150,845)[1] |
| Engine | 4.4L Twin-Turbo V8[1] |
| Horsepower | 617 hp @ 6,000 rpm[1] |
| Torque | 553 lb-ft @ 1,800 rpm[1] |
| 0-60 mph | 2.7 seconds (tested)[6] |
| Quarter-Mile | 10.8 sec @ 129 mph[6] |
| EPA Fuel Economy | 15 city / 22 highway / 17 combined mpg[1] |
| Cargo Space | ~15 cu ft[7] |
| Curb Weight | 4,480 lbs[1] |
| Drivetrain | xDrive AWD (RWD mode available)[3] |
Design and Practicality
Exterior
The M8 Gran Coupe presents one of BMW’s most cohesive designs, with a sweeping fastback roofline that creates visual drama without the controversial styling of newer BMW models[3]. Quad exhaust tips, aggressive front air intakes, and available carbon fiber exterior elements distinguish it from the standard 8 Series Gran Coupe[3].
Vicarious Mag praised the design, noting the M8 Gran Coupe delivers an unforgettable visual presence on the road[8]. At just over 200 inches long, the car commands attention while maintaining elegant proportions.
Interior
Inside, the M8 Gran Coupe delivers richly appointed luxury that Car and Driver says nobody will be disappointed by[3]. The cabin uses premium materials throughout, with Merino leather, real metal accents, and carbon fiber trim depending on options selected.
Standard equipment includes:
- 12.1-inch digital instrument cluster
- 12.3-inch central touchscreen with iDrive
- Merino leather upholstery
- 16-speaker Harman Kardon surround sound
- Heated front seats
- Wireless Apple CarPlay and Android Auto[7]
The main compromise is rear headroom. Car and Driver notes the squashed roofline limits space for taller passengers[3]. The trunk offers approximately 15 cubic feet, competitive for this class and notably more practical than the two-door M8 Coupe[7].
Performance and Efficiency
Powertrain
The 2023 M8 Gran Coupe’s twin-turbocharged 4.4-liter V8 produces 617 horsepower and 553 lb-ft of torque[1]. An eight-speed automatic transmission routes power to all four wheels through BMW’s xDrive system, with a crucial RWD mode for enthusiasts seeking tail-out driving[3].
Car and Driver recorded a 2.7-second 0-60 mph time and a 10.8-second quarter-mile at 129 mph[6]. Despite tipping the scales at 4,480 pounds, the M8 Gran Coupe generates 1.02 g of cornering grip and delivers 147-foot stops from 70 mph, leading its competitive set in braking performance[6].
Driving Experience
The Drive awarded the 2023 M8 Gran Coupe 9 out of 10, calling it an explosive, ridiculous hooligan[1]. Vicarious Mag praised the rear-biased xDrive system and electronic aids, noting that any middling pilot can feel like an ace behind the wheel[8]. The rear end wriggles and writhes on corner exit for an unforgettable sensation, never letting things cross the line[8].
However, Car and Driver identifies compromises: distant steering feel, a surplus of drive-mode settings, and a ride that can be punishing at times[3]. These flaws led Car and Driver to prefer the Audi RS7 in direct comparison, though the M8’s raw performance remains undeniably impressive[3].
Understanding what fuel BMWs require is essential. The M8 demands premium unleaded, adding to running costs.
Fuel Economy
EPA estimates sit at 15 mpg city, 22 mpg highway, and 17 mpg combined[1]. Edmunds recorded an exceptional 21.8 mpg on their 115-mile mixed driving loop, demonstrating the M8 can outperform its estimates with restrained driving[9]. Car and Driver observed 16 mpg during their testing[6].
With the 20.1-gallon fuel tank, expect approximately 340-440 miles between fill-ups depending on driving style.
Features and Technology
The 2023 M8 Gran Coupe Competition came well-equipped. Standard features included:
- xDrive all-wheel drive with RWD mode
- Adaptive M suspension
- Active steering
- M Sport exhaust system
- Navigation with real-time traffic
- Collision warning with emergency braking[7]
Popular available upgrades included:
- Bowers & Wilkins Diamond Surround Sound System: ~$3,400[7]
- M Carbon Fiber Exterior Package: ~$5,400[7]
- M Driver’s Package (190 mph top speed): ~$2,500[7]
- Executive Package (soft-close doors, parking assistance)[7]
A well-optioned 2023 M8 Gran Coupe could exceed $150,000 when new[1].
Pricing: New vs Used Value
| Condition | Price Range |
|---|---|
| Original MSRP (2023) | $134,000-$150,000+[1][4] |
| Trade-In Value (2025) | $72,252-$82,048[2] |
| Private Party Value | $74,090-$78,899[2] |
| Dealer Retail (2025) | $83,500-$115,000[5] |
Values as of December 2025. Prices vary based on mileage, condition, and options.
The 2023 M8 Gran Coupe has experienced significant depreciation. Edmunds projects total 5-year depreciation of approximately $36,377 from original MSRP, reaching approximately $46,240 by 2028[2]. This makes lightly used examples exceptional value for buyers seeking supercar performance at a substantial discount.
For context on BMW maintenance costs, expect premium pricing, especially after the 4-year/50,000-mile warranty expires.
Reliability and Common Issues
The M8 Gran Coupe uses BMW’s established S63 V8 engine, which has proven generally reliable when properly maintained[10]. Common reported issues include:
- Brake Squeal: Owners report squeaking brakes even at low mileage, particularly with ceramic options[10]
- Transmission Wiring Harness: Some vehicles experienced wiring harness shorts causing sudden stops; BMW issued recalls to replace and reroute the harness[10]
- Oil Consumption: The M8 burns oil faster than standard vehicles, requiring regular level checks[10]
- Defective Hydraulic Unit: Vehicles produced between December 2018 and February 2021 were recalled for faulty brake hydraulic units[10]
- Spark Plugs and Ignition Coils: Failures can cause misfires, hard starts, and rough idling; regular replacement is recommended[10]
Owner forums report that vehicles maintained according to BMW’s schedule generally deliver trouble-free ownership[11]. Reliability has reportedly improved since the 2020 launch year[11].
Competitor Comparison
| Vehicle | 2023 MSRP | Power | 0-60 mph | Test Result |
|---|---|---|---|---|
| BMW M8 Gran Coupe | $134,000[4] | 617 hp[1] | 2.7 sec[6] | 3rd place[6] |
| Mercedes-AMG GT 63 S | ~$150,000[4] | 630 hp[6] | 2.6 sec[6] | 1st place[6] |
| Audi RS7 | ~$128,600[6] | 591 hp[6] | 2.9 sec[6] | 2nd place[6] |
Car and Driver’s comparison test placed the Mercedes-AMG GT 63 S first, praising its superior acceleration (2.6 sec 0-60) and cornering grip (1.05 g vs 1.02 g)[6]. The Audi RS7 earned second place for its refined demeanor and more comfortable ride[6]. The M8 finished third despite leading in braking performance (147 ft from 70 mph vs 157 ft for the Mercedes) and fuel economy (tied at 16 mpg observed)[6].
However, Car and Driver called the M8 the dragster of the group, noting it’s the only one willing to do a Big Daddy Don Garlits-style burnout in RWD mode[6]. For buyers comparing within BMW, the M8 Coupe offers the same powertrain in a two-door package, while the M5 provides a more traditional sedan shape.
Pros and Cons
Pros:
- Supercar-level acceleration (2.7 sec 0-60) with four-door practicality[1]
- Best-in-class braking performance (147 ft from 70 mph)[6]
- Available RWD mode for enthusiast driving and burnouts[6]
- Exceptional used car value ($72,000-$85,000 vs $134,000+ new)[2]
- Real-world fuel economy can exceed EPA estimates (21.8 mpg observed)[9]
- The Drive’s 9/10 rating as an explosive, ridiculous hooligan[1]
Cons:
- Distant steering feel diminishes driver connection[3]
- Ride can be punishing at times[3]
- Squashed roofline compromises rear headroom[3]
- Surplus of drive-mode settings adds complexity[3]
- Higher oil consumption than standard vehicles[10]
- Finished last in Car and Driver’s three-way comparison[6]
Key Takeaways
- The 2023 BMW M8 Gran Coupe delivers 617 hp and reaches 60 mph in 2.7 seconds, with The Drive awarding it 9 out of 10 as an explosive, ridiculous hooligan
- Used examples trade between $72,252 and $85,000, representing exceptional value compared to the $134,000+ original MSRP
- Best-in-class braking performance (147 ft from 70 mph) and available RWD mode for burnouts distinguish it from rivals
- Car and Driver placed it third behind the Mercedes-AMG GT 63 S and Audi RS7 due to distant steering and punishing ride quality
FAQs
How fast is the 2023 BMW M8 Gran Coupe?
Car and Driver testing recorded a 2.7-second 0-60 mph time and a 10.8-second quarter-mile at 129 mph. Top speed is electronically limited to 155 mph, or 190 mph with the M Driver’s Package[6].
How much is a used 2023 BMW M8 Gran Coupe worth?
Is the 2023 BMW M8 Gran Coupe reliable?
The M8 uses BMW’s established S63 V8, which is generally reliable when properly maintained. Common issues include brake squeal, higher oil consumption, and occasional spark plug/ignition coil failures. BMW issued recalls for transmission wiring and brake hydraulic units on affected vehicles[10].
How does the M8 Gran Coupe compare to the Mercedes-AMG GT 63 S?
The AMG GT 63 S won Car and Driver’s comparison with quicker acceleration (2.6 sec vs 2.7 sec 0-60) and better cornering grip (1.05 g vs 1.02 g). However, the M8 offered superior braking (147 ft vs 157 ft from 70 mph) and matched the Mercedes in fuel economy at 16 mpg observed[6].
References
- The Drive. (2023). 2023 BMW M8 Competition Gran Coupe Review. https://www.thedrive.com/car-reviews/2023-bmw-m8-competition-gran-coupe-review-specs-price-options-impressions
- Edmunds. (2025). 2023 BMW M8 Gran Coupe Value. https://www.edmunds.com/bmw/m8-gran-coupe/2023/appraisal-value/
- Car and Driver. (2023). 2023 BMW M8 Gran Coupe Review, Pricing, and Specs. https://www.caranddriver.com/bmw/m8-gran-coupe-2023
- CarBuzz. (2023). 2023 BMW M8 Gran Coupe Review, Pricing, Photos, and Specs. https://carbuzz.com/cars/bmw/m8-gran-coupe/2023/
- Autotrader. (2025). Used 2023 BMW M8 Gran Coupe xDrive for Sale. https://www.autotrader.com/cars-for-sale/2023/bmw/m8-gran-coupe-xdrive
- Car and Driver. (2021). Tested: 2021 Audi RS7 vs. BMW M8 GC vs. Mercedes-AMG GT63 S. https://www.caranddriver.com/reviews/comparison-test/a36062926/2021-audi-rs7-vs-2020-bmw-m8-gran-coupe-2021-mercedes-amg-gt63-s/
- Cars.com. (2023). 2023 BMW M8 Gran Coupe Specs, Dimensions & Colors. https://www.cars.com/research/bmw-m8_gran_coupe-2023/specs/
- Vicarious Mag. (2023). Road Test: 2023 BMW M8 Competition Gran Coupe. https://www.vicariousmag.com/road-test-2023-bmw-m8-competition-gran-coupe/
- Edmunds. (2023). 2023 BMW M8 Gran Coupe Review & Ratings. https://www.edmunds.com/bmw/m8-gran-coupe/2023/
- Exotic Car Hacks. (2024). BMW M8 Buyers Guide. https://www.exoticcarhacks.com/buyers-guides/bmw-m8-buyers-guide/
- BimmerPost. (2023). M8 Reliability Discussion. https://f92.bimmerpost.com/forums/showthread.php?t=1994143
I am a senior automotive analyst at Autvex. Expert vehicle evaluations, in-depth reviews, and objective analysis helping readers make informed automotive decisions with years of industry experience.
