The Alpina B7 (G12) represents a high-performance iteration of the BMW 7 Series, meticulously engineered by the independent German automotive engineering company, Alpina Burkard Bovensiepen. Produced between 2016 and 2018, the G12 generation B7 occupied a unique niche, bridging the gap between luxury sedans and outright sports cars. It was positioned as a more driver-focused alternative to the standard 7 Series, offering enhanced performance and a more exclusive experience. This particular variant, equipped with the 4.4-liter V8 engine producing 608 horsepower and paired with the all-wheel-drive system and Switch-Tronic automatic transmission, was the flagship model of the G12 B7 lineup.
Technical Specifications
| Brand | Alpina |
| Model | B7 |
| Generation | B7 (G12) |
| Type (Engine) | 4.4 V8 (608 Hp) Allrad Switch-Tronic |
| Start of production | 2016 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 14.7 l/100 km (16 US mpg, 19.2 UK mpg, 6.8 km/l) |
| Fuel consumption (economy) – extra urban | 7.9 l/100 km (29.8 US mpg, 35.8 UK mpg, 12.7 km/l) |
| Fuel consumption (economy) – combined | 10.4 l/100 km (22.6 US mpg, 27.2 UK mpg, 9.6 km/l) |
| CO2 emissions | 242 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.7 sec |
| Acceleration 0 – 62 mph | 3.7 sec |
| Acceleration 0 – 60 mph | 3.5 sec |
| Maximum speed | 310 km/h (192.63 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 3.3 kg/Hp, 298.8 Hp/tonne |
| Weight-to-torque ratio | 2.5 kg/Nm, 393.1 Nm/tonne |
| Power | 608 Hp @ 5750-6250 rpm |
| Power per litre | 138.3 Hp/l |
| Torque | 800 Nm @ 3000-5000 rpm (590.05 lb.-ft. @ 3000-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine displacement | 4395 cm3 (268.2 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 88.3 mm (3.48 in.) |
| Compression ratio | 10:1 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Kerb Weight | 2035 kg (4486.41 lbs.) |
| Max. weight | 2735 kg (6029.64 lbs.) |
| Max load | 700 kg (1543.24 lbs.) |
| Trunk (boot) space – minimum | 515 l (18.19 cu. ft.) |
| Fuel tank capacity | 78 l (20.61 US gal, 17.16 UK gal) |
| Length | 5250 mm (206.69 in.) |
| Width | 1902 mm (74.88 in.) |
| Width including mirrors | 2169 mm (85.39 in.) |
| Height | 1491 mm (58.7 in.) |
| Wheelbase | 3210 mm (126.38 in.) |
| Front track | 1622 mm (63.86 in.) |
| Rear (Back) track | 1619 mm (63.74 in.) |
| Front overhang | 892 mm (35.12 in.) |
| Rear overhang | 1148 mm (45.2 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Switch-Tronic |
| 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 | 255/40 ZR20; 295/35 ZR20 |
| Wheel rims size | 8.5J x 20; 10J x 20 |
Powertrain & Engine Architecture
At the heart of the B7 (G12) lies BMW’s N63B44T0 engine, a 4.4-liter twin-turbocharged V8. Alpina extensively modified this engine, increasing boost pressure and recalibrating the engine management system to achieve 608 horsepower and 590 lb-ft of torque. The engine utilizes direct fuel injection and variable valve timing (Valvetronic) to optimize combustion efficiency and power delivery. The twin-scroll turbochargers, positioned within the V of the engine, minimize turbo lag and provide a broad, flat torque curve. The ‘Switch-Tronic’ transmission is an 8-speed automatic, derived from the ZF 8HP series, but with Alpina-specific software tuning for quicker shifts and more responsive behavior. This transmission is designed to handle the substantial torque output of the engine and offers both automatic and manual shift modes.
Driving Characteristics
The B7’s driving experience is a compelling blend of luxury and performance. The 608 hp engine delivers exhilarating acceleration, with 0-60 mph times consistently measured around 3.5 seconds. The all-wheel-drive system provides excellent traction, particularly in inclement weather, and contributes to confident handling. The Switch-Tronic transmission offers smooth and precise shifts, whether in automatic mode or when utilizing the steering wheel-mounted paddles. Compared to the standard 7 Series, the B7 feels noticeably more responsive and engaging. While the standard 7 Series prioritizes ride comfort, the B7 offers a slightly firmer suspension setup, enhancing body control and cornering ability. Compared to other Alpina models, or even the BMW M760i, the B7 offers a more refined and less overtly aggressive driving experience.
Equipment & Trim Levels
The B7 came exceptionally well-equipped as standard. Interior appointments included premium leather upholstery, wood trim, and Alpina-specific badging. Standard features included a panoramic sunroof, heated and ventilated front seats, a premium sound system, and a comprehensive suite of driver-assistance systems. Optional extras included rear-seat entertainment, individual rear seats, and a variety of bespoke interior customization options. The B7’s interior was designed to provide a luxurious and comfortable environment for both driver and passengers, while still maintaining a sporty and driver-focused ambiance.
Chassis & Braking
The B7’s chassis builds upon the 7 Series’ advanced architecture, incorporating features like air suspension and active roll stabilization. Alpina further refined the suspension tuning to optimize handling and ride comfort. The B7 utilizes large, ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is enhanced by ABS, traction control, and stability control systems. The suspension geometry and damper settings were specifically calibrated to manage the increased weight and power of the B7, ensuring a balanced and controlled driving experience.
Market Reception & Comparison
The Alpina B7 (G12) was generally well-received by automotive critics, who praised its blend of luxury, performance, and exclusivity. It was often positioned as a compelling alternative to the BMW M760i, offering a more refined and understated driving experience. Fuel economy, while not a primary concern for B7 buyers, was respectable for a vehicle of its size and performance, averaging around 22.6 mpg combined. Reliability was generally good, although the complex twin-turbocharged engine and advanced electronic systems could potentially require more maintenance than simpler powertrains.
Legacy
The Alpina B7 (G12) remains a desirable vehicle in the used car market, appealing to enthusiasts who appreciate its unique combination of luxury and performance. The 4.4-liter twin-turbo V8 engine has proven to be relatively reliable, although regular maintenance is essential. The Switch-Tronic transmission is also known for its durability. As a limited-production model, the B7 (G12) has become a collector’s item, with values generally holding steady or even appreciating over time. It represents a high point in Alpina’s history, showcasing the company’s expertise in refining and enhancing BMW’s flagship models.
