The BMW 6 Series Gran Turismo (G32) facelift, specifically the 630d variant introduced in 2020 and produced through 2023, represents BMW’s attempt to blend the luxury and performance of the 6 Series with the practicality of a large, five-door hatchback. Positioned as a mid-range offering within the G32 lineup, the 630d aimed to provide a balance between fuel efficiency, respectable performance, and a comfortable grand touring experience. This model incorporated mild hybrid technology, a key feature for reducing emissions and improving overall efficiency. It served primarily as a European market vehicle, offering a more spacious and versatile alternative to the traditional 6 Series coupe and convertible.
Technical Specifications
| Brand | BMW |
| Model | 6 Series |
| Generation | 6 Series Gran Turismo (G32 LCI, facelift 2020) |
| Type (Engine) | 630d (286 Hp) Mild Hybrid Steptronic |
| Start of production | 2020 |
| End of production | 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Grand Tourer |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.1-6.2 l/100 km (38.6 – 37.9 US mpg) |
| Fuel consumption (extra urban) | 4.2-4.4 l/100 km (56 – 53.5 US mpg) |
| Fuel consumption (combined) | 4.9-5.0 l/100 km (48 – 47 US mpg) |
| CO2 emissions | 128-133 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.1 sec |
| Acceleration 0 – 62 mph | 6.1 sec |
| Acceleration 0 – 60 mph | 5.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | EURO 6d |
| Weight-to-power ratio | 6.7 kg/Hp |
| Weight-to-torque ratio | 3 kg/Nm |
| Gross battery capacity | 0.528 kWh |
| Electric motor power | 11 Hp |
| Power | 286 Hp @ 4000 rpm |
| Torque | 650 Nm @ 1500-2500 rpm (479.42 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B57D30B |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1930 kg (4254.92 lbs.) |
| Max. weight | 2575 kg (5676.9 lbs.) |
| Max load | 645 kg (1421.98 lbs.) |
| Trunk (boot) space – minimum | 600 l (21.19 cu. ft.) |
| Trunk (boot) space – maximum | 1800 l (63.57 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 5091 mm (200.43 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1538 mm (60.55 in.) |
| Wheelbase | 3070 mm (120.87 in.) |
| Front track | 1615 mm (63.58 in.) |
| Rear track | 1649 mm (64.92 in.) |
| Ride height (ground clearance) | 138 mm (5.43 in.) |
| Drag coefficient (Cd) | 0.25 |
| Minimum turning circle | 12.3 m (40.35 ft.) |
| Drivetrain Architecture | RWD, MHEV |
| Number of gears | 8 |
| Gearbox type | Automatic Steptronic |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
INTRODUCTION
The 2020-2023 BMW 630d Gran Turismo (G32 LCI) is a five-door grand tourer that builds upon the foundation of the G32 platform, which debuted in 2017. The “LCI” designation signifies a Life Cycle Impulse, or facelift, bringing updated styling, technology, and powertrain options. The 630d variant, powered by a 3.0-liter inline-six diesel engine with mild hybrid assistance, was a key offering in European markets, where diesel engines remained popular due to their fuel efficiency and torque characteristics. It aimed to provide a more practical alternative to the 6 Series coupe and convertible, offering increased rear passenger space and cargo capacity without sacrificing BMW’s core values of driving dynamics and luxury.
Powertrain & Engine Architecture
At the heart of the 630d Gran Turismo lies the BMW B57D30B engine, a 3.0-liter inline-six diesel. This engine is a member of the modular BMW engine family and features a sophisticated common-rail direct injection system operating at extremely high pressures. The B57 utilizes a variable geometry turbocharger (VGT) and an intercooler to optimize performance and efficiency. The mild hybrid system, a 48V setup, incorporates a starter-generator that provides a power boost during acceleration and allows for smoother start-stop operation. This system also enables coasting with the engine switched off, further enhancing fuel economy. The engine produces 286 horsepower at 4000 rpm and a substantial 650 Nm (479 lb-ft) of torque between 1500 and 2500 rpm. The engine is paired with an 8-speed Steptronic automatic transmission, known for its smooth and quick shifts. This transmission is electronically controlled and adapts to driving conditions and driver input.
Driving Characteristics
The 630d Gran Turismo delivers a refined and comfortable driving experience. The high torque output of the diesel engine provides strong acceleration, with a 0-60 mph time of around 5.8 seconds. While not a sports car, the 630d offers ample power for effortless highway cruising and overtaking. The 8-speed automatic transmission contributes to smooth gear changes and helps keep the engine in its optimal power band. Compared to higher-output 6 Series variants, such as the 640i, the 630d prioritizes fuel efficiency and relaxed cruising over outright performance. The mild hybrid system further enhances the smoothness of the powertrain, particularly during start-stop transitions. The steering is precise and well-weighted, providing a confident feel on the road.
Equipment & Trim Levels
The 630d Gran Turismo came well-equipped as standard, reflecting its positioning as a luxury vehicle. Standard features typically included leather upholstery, power-adjustable front seats with memory function, a premium sound system, a large infotainment screen with iDrive controller, navigation, and a comprehensive suite of safety features. Optional extras included features like adaptive cruise control, a head-up display, panoramic sunroof, upgraded leather trim, and various driver assistance systems. Trim levels varied by market, but generally offered options for enhanced interior finishes and exterior styling elements.
Chassis & Braking
The G32 Gran Turismo features a robust chassis designed to provide a comfortable ride and stable handling. The front suspension utilizes a double wishbone setup, while the rear employs an independent multi-link suspension. This configuration helps to isolate the cabin from road imperfections and maintain control during cornering. The 630d Gran Turismo is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS), electronic stability control (ESC), and traction control are standard safety features.
Market Reception & Comparison
The 630d Gran Turismo was generally well-received by automotive critics, who praised its spacious interior, comfortable ride, and fuel efficiency. However, some reviewers noted that the styling was not as universally appealing as the traditional 6 Series coupe and convertible. Compared to other trims in the 6 Series Gran Turismo lineup, the 630d offered a compelling balance between performance and economy. The petrol-powered 640i provided more outright performance, while the 620d offered even greater fuel efficiency but with less power. The 630d positioned itself as a sweet spot for drivers seeking a comfortable and capable grand tourer.
Legacy
The BMW 630d Gran Turismo (G32 LCI) represents a unique offering in BMW’s lineup, blending the practicality of a hatchback with the luxury and performance of the 6 Series brand. The B57 diesel engine is known for its reliability and longevity, and the mild hybrid system adds a layer of efficiency and refinement. On the used car market, these models are generally sought after for their comfortable ride, spacious interior, and relatively low running costs. While the Gran Turismo body style was discontinued after the G32 generation, the 630d remains a capable and well-equipped grand tourer for those seeking a versatile and efficient luxury vehicle.
