The BMW 8 Series Gran Coupe (G16 LCI), specifically the 840i xDrive Steptronic model, represents a refined iteration of BMW’s flagship coupe, introduced with a facelift in March 2022. Positioned as a mid-range offering within the 8 Series Gran Coupe lineup, it bridges the gap between the entry-level 830d and the high-performance M8 Competition. This four-door coupe aims to blend grand touring comfort with engaging performance, appealing to buyers seeking a luxurious and capable vehicle. The G16 LCI builds upon the foundation of the original G16 platform, incorporating updated styling, technology, and powertrain refinements.
Technical Specifications
| Brand | BMW |
| Model | 8 Series |
| Generation | 8 Series Gran Coupe (G16 LCI, facelift 2022) |
| Type (Engine) | 840i (333 Hp) xDrive Steptronic |
| Start of production | March, 2022 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 8.7-9.3 l/100 km (27 – 25.3 US mpg, 32.5 – 30.4 UK mpg, 11.5 – 10.8 km/l) |
| CO2 emissions (WLTP) | 199-211 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.1 sec |
| Acceleration 0 – 62 mph | 5.1 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 5.6 kg/Hp, 177.6 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 266.7 Nm/tonne |
| Power | 333 Hp @ 5500-6250 rpm |
| Power per litre | 111.1 Hp/l |
| Torque | 500 Nm @ 1700-4000 rpm (368.78 lb.-ft. @ 1700-4000 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 | DOHC |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 1875 kg (4133.67 lbs.) |
| Max. weight | 2480 kg (5467.46 lbs.) |
| Max load | 605 kg (1333.8 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| 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.) |
| Ride height (ground clearance) | 121 mm (4.76 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 12.6 m (41.34 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front wheel tires: 245/40 R19; 245/35 R20 Rear wheel tires: 275/35 R19; 275/30 R20 |
| Wheel rims size | Front wheel rims: 8J x 19; 8J x 20 Rear wheel rims: 9J x 19; 9J x 20 |
Powertrain & Engine Architecture
At the heart of the 840i xDrive Steptronic lies BMW’s B58B30C 3.0-liter inline-six engine. This engine is a member of the modular B-series family, known for its robust construction and sophisticated technology. It utilizes direct fuel injection, a twin-scroll turbocharger, and a double-VANOS variable valve timing system to deliver a balance of power and efficiency. The B58 engine produces 333 horsepower at 5500-6250 rpm and 500 Nm (368.78 lb-ft) of torque between 1700 and 4000 rpm. The engine’s longitudinal mounting and front placement contribute to the car’s balanced handling characteristics. The engine is paired with an 8-speed Steptronic automatic transmission, which offers smooth and responsive gear changes. This transmission is programmed for both comfort and performance, with the ability to manually shift gears using steering wheel-mounted paddles.
Driving Characteristics
The 840i xDrive Steptronic delivers a refined and engaging driving experience. The combination of the turbocharged inline-six and the eight-speed automatic transmission provides ample power for both highway cruising and spirited driving. Acceleration from 0 to 60 mph takes approximately 4.8 seconds. The xDrive all-wheel-drive system ensures excellent traction in various weather conditions, enhancing stability and confidence. Compared to higher-performance variants like the M8 Competition, the 840i prioritizes comfort and usability. While it doesn’t offer the same level of raw power, it provides a more relaxed and refined driving experience. The automatic transmission’s gear ratios are optimized for both fuel efficiency and responsive acceleration, offering a good balance for everyday driving.
Equipment & Trim Levels
The 840i xDrive Steptronic comes standard with a comprehensive suite of features, reflecting its positioning as a luxury grand tourer. Standard equipment includes leather upholstery, power-adjustable front seats with memory function, a premium sound system, a large infotainment display with iDrive controller, and a suite of advanced driver-assistance systems such as lane departure warning, forward collision warning, and automatic emergency braking. Optional extras include upgraded leather options, a Bowers & Wilkins Diamond Surround Sound System, a head-up display, and various interior trim packages. The LCI facelift brought updated interior trim options and enhanced connectivity features.
Chassis & Braking
The 8 Series Gran Coupe features a sophisticated chassis designed to deliver a comfortable yet engaging driving experience. The front suspension utilizes a double-wishbone design, while the rear suspension employs an independent multi-link setup. This configuration provides excellent ride quality and precise handling. The 840i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system and ABS (Anti-lock Braking System) further enhance safety and control. The car’s relatively low ride height (121 mm / 4.76 in) contributes to its sporty handling characteristics.
Market Reception & Comparison
The 840i xDrive Steptronic was generally well-received by automotive critics. Reviewers praised its refined engine, comfortable ride, and luxurious interior. The xDrive all-wheel-drive system was also noted as a significant benefit, particularly in inclement weather. Compared to the 830d, the 840i offers significantly more performance. However, it does come with a higher price tag and slightly lower fuel economy. Against competitors like the Mercedes-Benz S-Class Coupe and the Porsche Panamera, the 840i offers a unique blend of style, performance, and technology.
Legacy
The B58 engine, found in the 840i, has proven to be a reliable and durable powerplant. While long-term reliability data is still accumulating for the G16 LCI models, the B58 engine has a strong reputation for longevity and relatively low maintenance costs. On the used car market, the 840i xDrive Steptronic is expected to hold its value well, appealing to buyers seeking a luxurious and capable grand tourer with a proven powertrain. The combination of performance, comfort, and technology makes it a desirable option in the luxury coupe segment.
