Technical Specifications
| Brand | BMW |
| Model | 6 Series |
| Generation | 6 Series Gran Turismo (G32 LCI, facelift 2020) |
| Type (Engine) | 630i (258 Hp) Mild Hybrid Steptronic |
| Start of production | 2020 |
| End of production | 2022 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Grand Tourer |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.2-7.4 l/100 km (32.7 – 31.8 US mpg) |
| Fuel consumption (extra urban) | 5.2-5.4 l/100 km (45.2 – 43.6 US mpg) |
| Fuel consumption (combined) | 5.9-6.1 l/100 km (39.9 – 38.6 US mpg) |
| CO2 emissions | 135-139 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.5 sec |
| Acceleration 0 – 62 mph | 6.5 sec |
| Acceleration 0 – 60 mph | 6.2 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | EURO 6d |
| Weight-to-power ratio | 6.9 kg/Hp |
| Weight-to-torque ratio | 4.5 kg/Nm |
| Gross battery capacity | 0.528 kWh |
| Electric motor power | 11 Hp |
| Power | 258 Hp @ 5000-6500 rpm |
| Torque | 400 Nm @ 1550-4400 rpm (295.02 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48B20B |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC |
| Engine oil capacity | 5.25 l (5.55 US qt | 4.62 UK qt) |
| Coolant capacity | 9.9 l (10.46 US qt | 8.71 UK qt) |
| Kerb Weight | 1785 kg (3935.25 lbs.) |
| Max. weight | 2450 kg (5401.33 lbs.) |
| Max load | 665 kg (1466.07 lbs.) |
| Trunk (boot) space – minimum | 600 l (21.19 cu. ft.) |
| Trunk (boot) space – maximum | 1800 l (63.57 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 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 | Rear wheel drive. MHEV. ICE and electric motor drive rear wheels. |
| Number of gears | 8 |
| Gearbox type | Automatic transmission Steptronic |
The BMW 630i Gran Turismo, launched as part of the G32 LCI update in 2020, is a five-door, five-seat grand tourer designed to offer a blend of luxury, space, and driving dynamics. It sits within the 6 Series range, which historically encompassed coupe and convertible models, but the G32 represents a more practical, hatchback-style interpretation. The LCI facelift brought revised styling, updated technology, and powertrain refinements, including the introduction of the 48V mild-hybrid system. This variant aimed to provide a more accessible entry point into the 6 Series Gran Turismo lineup, appealing to buyers prioritizing efficiency and comfort over outright performance.
Powertrain & Engine Architecture
At the heart of the 630i Gran Turismo lies the BMW B48B20B 2.0-liter inline-four cylinder engine. This engine is a member of BMW’s modular engine family, known for its efficiency and responsiveness. It utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and lift system. The addition of a 48V mild-hybrid system enhances efficiency by allowing for extended coasting with the engine off, regenerative braking, and a smoother start-stop function. The electric motor, integrated into the drivetrain, provides a modest 11 horsepower of assistance. The engine produces 258 horsepower at 5000-6500 rpm and 400 Nm (295 lb-ft) of torque between 1550-4400 rpm. The power is delivered to the rear wheels via an eight-speed Steptronic automatic transmission, known for its quick and smooth shifts. This transmission features adaptive shift programs and can be manually controlled via steering wheel-mounted paddles.
Driving Characteristics
The 630i Gran Turismo offers a comfortable and refined driving experience. While not as overtly sporty as some other 6 Series variants, the 2.0-liter engine provides adequate power for effortless cruising and overtaking. The mild-hybrid system contributes to a seamless and responsive feel, particularly during acceleration. The eight-speed automatic transmission is well-tuned, providing smooth gear changes and keeping the engine within its optimal power band. Compared to the more powerful 640i or 650i models, the 630i prioritizes fuel efficiency and comfort over outright performance. The steering is precise and well-weighted, and the suspension effectively absorbs bumps and imperfections in the road. The rear-wheel drive configuration provides a balanced and engaging driving experience, although it may not be ideal for driving in inclement weather without appropriate tires.
Equipment & Trim Levels
The 630i Gran Turismo typically came well-equipped as standard. Common features included BMW’s iDrive infotainment system with a touchscreen display, navigation, Apple CarPlay and Android Auto compatibility, leather upholstery, power-adjustable front seats with memory function, automatic climate control, and a suite of advanced driver-assistance systems such as lane departure warning, forward collision warning, and automatic emergency braking. Optional extras included a premium sound system, panoramic sunroof, head-up display, adaptive cruise control, and various interior trim options. The Gran Turismo’s hatchback design provides a generous amount of cargo space, making it a practical choice for families or those who frequently transport large items.
Chassis & Braking
The 630i Gran Turismo utilizes a sophisticated chassis design. The front suspension features a double-wishbone setup, while the rear employs an independent multi-link suspension. This configuration provides a comfortable ride and precise handling. The car 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 features. The steering system is an electric power-assisted rack-and-pinion setup, offering precise and responsive steering feel.
Market Reception & Comparison
The 630i Gran Turismo was generally well-received by automotive critics, who praised its spacious interior, comfortable ride, and efficient powertrain. However, some reviewers noted that it lacked the sporty character of other BMW models. Compared to the 640i, the 630i offered a more affordable entry point into the 6 Series Gran Turismo range, but at the expense of some performance. Fuel economy figures of around 39-40 mpg combined were considered competitive for its class. Reliability reports have been generally positive, with few major issues reported.
Legacy
The BMW 630i Gran Turismo (G32 LCI) represents a unique and somewhat niche offering in BMW’s history. While the Gran Turismo concept didn’t achieve the same sales success as more traditional BMW models, it offered a compelling combination of luxury, space, and efficiency. On the used car market, the 630i Gran Turismo represents a relatively affordable way to experience BMW luxury and technology. The B48 engine, coupled with the eight-speed Steptronic transmission, has proven to be a reliable and durable powertrain, making these vehicles a potentially good long-term investment for buyers seeking a comfortable and practical grand tourer.
