Technical Specifications
| Brand | BMW |
| Model | 8 Series |
| Generation | 8 Series Gran Coupe (G16) |
| Type (Engine) | 840i (340 Hp) Steptronic |
| Start of production | June, 2019 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 8.9-9.3 l/100 km (26.4 – 25.3 US mpg, 31.7 – 30.4 UK mpg, 11.2 – 10.8 km/l) |
| Fuel consumption (extra urban) | 6.2-6.5 l/100 km (37.9 – 36.2 US mpg, 45.6 – 43.5 UK mpg, 16.1 – 15.4 km/l) |
| Fuel consumption (combined) | 7.2-7.5 l/100 km (32.7 – 31.4 US mpg, 39.2 – 37.7 UK mpg, 13.9 – 13.3 km/l) |
| CO2 emissions | 164-170 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.2 sec |
| Acceleration 0 – 62 mph | 5.2 sec |
| Acceleration 0 – 60 mph | 4.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-Temp |
| Weight-to-power ratio | 5.3 kg/Hp, 188.9 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 277.8 Nm/tonne |
| Power | 340 Hp @ 5000-6500 rpm |
| Power per litre | 113.4 Hp/l |
| Torque | 500 Nm @ 1600-4500 rpm (368.78 lb.-ft. @ 1600-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30C |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1800 kg (3968.32 lbs.) |
| Max. weight | 2435 kg (5368.26 lbs.) |
| Max load | 635 kg (1399.94 lbs.) |
| Trunk (boot) space – maximum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Length | 5082 mm (200.08 in.) |
| Width | 1932 mm (76.06 in.) |
| Width including mirrors | 2137 mm (84.13 in.) |
| Height | 1407 mm (55.39 in.) |
| Wheelbase | 3023 mm (119.02 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1671 mm (65.79 in.) |
| Front overhang | 953 mm (37.52 in.) |
| Rear overhang | 1106 mm (43.54 in.) |
| Drag coefficient (Cd) | 0.29 |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
The BMW 8 Series Gran Coupe (G16) 840i Steptronic, produced from June 2019 through 2020, represents a compelling blend of luxury, performance, and technology within the 8 Series lineup. Positioned as a mid-range offering, it slotted between the base 840i and the high-performance M850i, appealing to buyers seeking a refined grand touring experience with substantial power. The G16 generation marked the revival of the 8 Series nameplate after a nearly two-decade hiatus, aiming to recapture the spirit of the original E31 8 Series while incorporating modern BMW engineering and design. This variant specifically caters to those preferring the convenience of an automatic transmission paired with a potent inline-six engine.
Powertrain & Engine Architecture
At the heart of the 840i Steptronic lies BMW’s B58B30C 3.0-liter inline-six engine. This engine is a member of BMW’s modular engine family, known for its smooth power delivery and efficiency. The B58 utilizes a single twin-scroll turbocharger, direct fuel injection, and BMW’s VALVETRONIC variable valve timing and lift system. VALVETRONIC allows for precise control of valve timing and lift, optimizing engine performance and fuel economy across a wide range of operating conditions. The engine produces 340 horsepower at 5000-6500 rpm and 500 Nm (368 lb-ft) of torque between 1600-4500 rpm. The engine is longitudinally mounted at the front of the vehicle, driving the rear wheels. The Steptronic transmission is an 8-speed automatic, offering smooth and responsive shifts. It features adaptive shift programs that adjust to the driver’s style and driving conditions.
Driving Characteristics
The 840i Steptronic delivers a refined and engaging driving experience. The combination of the potent inline-six and the 8-speed automatic results in a 0-60 mph time of approximately 4.9 seconds. While not as aggressively tuned as the M850i, the 840i provides ample power for both comfortable cruising and spirited driving. The automatic transmission is well-programmed, offering quick and seamless gear changes. Compared to a manual transmission equipped 840i (not widely available in the US market), the Steptronic prioritizes ease of use and convenience, sacrificing some driver engagement. The power delivery is linear and predictable, making it easy to modulate throttle inputs. The rear-wheel-drive configuration contributes to a balanced chassis and responsive handling.
Equipment & Trim Levels
The 840i Steptronic came standard with a comprehensive list of features, befitting its luxury grand tourer status. Standard equipment included leather upholstery, power-adjustable front seats with memory function, a 12.3-inch digital instrument cluster, a 10.25-inch central infotainment display with iDrive 7.0, navigation, Apple CarPlay compatibility, and a premium sound system. Optional extras included upgraded leather options, a Bowers & Wilkins Diamond Surround Sound System, active roll stabilization, laser headlights, and a variety of driver-assistance systems such as adaptive cruise control and lane keeping assist. Interior trim options ranged from fine wood veneers to aluminum accents, allowing buyers to personalize the cabin to their preferences.
Chassis & Braking
The 8 Series Gran Coupe utilizes a sophisticated chassis design. The front suspension features a double-wishbone setup, while the rear employs an independent multi-link spring suspension with a stabilizer bar. This configuration provides a comfortable ride while maintaining precise handling. The 840i is equipped with ventilated disc brakes on all four wheels. The braking system is enhanced by ABS (Anti-lock Braking System) and electronic brake-force distribution. The standard wheel and tire size is 18-inch, with larger 19- and 20-inch options available. The suspension is tuned to provide a balance between comfort and sportiness, offering a composed ride even on uneven surfaces.
Market Reception & Comparison
The 840i Steptronic was generally well-received by automotive critics. Reviewers praised its refined driving experience, luxurious interior, and powerful engine. The automatic transmission was noted for its smoothness and responsiveness. Compared to the higher-priced M850i, the 840i offered a more accessible entry point into the 8 Series range without sacrificing significant performance. Fuel economy was considered respectable for a vehicle of its size and performance, with combined figures ranging from 32.7 to 31.4 US mpg. Reliability reports have been generally positive, with few widespread issues reported.
Legacy
The BMW 8 Series Gran Coupe (G16) 840i Steptronic represents a modern interpretation of the classic grand tourer. The B58 engine has proven to be a robust and reliable powerplant, and the 8-speed Steptronic transmission continues to be a popular choice among BMW enthusiasts. On the used car market, the 840i Steptronic holds its value well, attracting buyers seeking a luxurious and capable grand tourer. Its blend of performance, comfort, and technology ensures its continued appeal for years to come. The G16 8 Series, and the 840i variant specifically, successfully revived a legendary nameplate for a new generation of drivers.
