The Alpina B3 Touring (G21, facelift 2024) GT 3.0, equipped with the 529 horsepower engine and all-wheel drive SWITCH-TRONIC transmission, represents the pinnacle of performance within the Alpina B3 Touring lineup. Introduced in June 2024, this variant builds upon the already potent G21 generation, offering a unique blend of luxury, practicality, and exhilarating performance. Positioned as the flagship model, it caters to enthusiasts seeking a high-performance wagon without compromising on everyday usability. The B3 Touring occupies a niche market, bridging the gap between mainstream luxury brands and dedicated performance manufacturers.
Technical Specifications
| Brand | Alpina |
| Model | B3 |
| Generation | B3 Touring (G21, facelift 2024) |
| Type | GT 3.0 (529 Hp) AWD SWITCH-TRONIC |
| Start of production | June, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption at Low speed (WLTP) | 17.6 l/100 km (13.4 US mpg, 16.1 UK mpg, 5.7 km/l) |
| Fuel consumption at Medium speed (WLTP) | 10.5 l/100 km (22.4 US mpg, 26.9 UK mpg, 9.5 km/l) |
| Fuel consumption at high speed (WLTP) | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| Fuel consumption at very high speed (WLTP) | 9.1 l/100 km (25.8 US mpg, 31 UK mpg, 11 km/l) |
| Combined fuel consumption (WLTP) | 10.5-10.6 l/100 km (22.4 – 22.2 US mpg, 26.9 – 26.6 UK mpg, 9.5 – 9.4 km/l) |
| CO2 emissions (WLTP) | 239-241 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 3.5 sec |
| Acceleration 0 – 62 mph | 3.5 sec |
| Acceleration 0 – 60 mph | 3.3 sec |
| Acceleration 0 – 200 km/h | 12 sec |
| Maximum speed | 305 km/h (189.52 mph) |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 3.5 kg/Hp, 282.9 Hp/tonne |
| Weight-to-torque ratio | 2.6 kg/Nm, 390.4 Nm/tonne |
| Power | 529 Hp @ 6250-6500 rpm |
| Power per litre | 176.7 Hp/l |
| Torque | 730 Nm @ 2500-4500 rpm (538.42 lb.-ft. @ 2500-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | S58B30 |
| 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 | 9.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine systems | Start & Stop System, Particulate filter |
| Kerb Weight | 1870 kg (4122.64 lbs.) |
| Max. weight | 2430 kg (5357.23 lbs.) |
| Max load | 560 kg (1234.59 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal, 12.98 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4725 mm (186.02 in.) |
| Width | 1827 mm (71.93 in.) |
| Width including mirrors | 2068 mm (81.42 in.) |
| Height | 1438 mm (56.61 in.) |
| Wheelbase | 2851 mm (112.24 in.) |
| Front track | 1577 mm (62.09 in.) |
| Rear (Back) track | 1572 mm (61.89 in.) |
| Minimum turning circle | 12 m (39.37 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 SWITCH-TRONIC |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| 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: 255/30 ZR20, Rear wheel tires: 265/30 ZR20 |
| Wheel rims size | Front wheel rims: 8.5J x 20, Rear wheel rims: 9.5J x 20 |
Powertrain & Engine Architecture
At the heart of the B3 Touring GT 3.0 lies the Alpina-tuned version of the BMW S58 3.0-liter inline-six engine. This engine, designated S58B30, benefits from twin-scroll turbocharging, direct fuel injection, and a robust cooling system. The twin turbochargers are meticulously calibrated to deliver a broad torque curve, peaking at 730 Nm (538.42 lb.-ft.) between 2500 and 4500 rpm. The engine’s output of 529 horsepower is achieved between 6250 and 6500 rpm. The engine utilizes a compression ratio of 9.3:1. The SWITCH-TRONIC 8-speed automatic transmission, a ZF unit modified by Alpina, is integral to the driving experience. It offers both fully automatic operation and manual gear selection via steering wheel-mounted paddles. Alpina’s calibration of the transmission prioritizes both rapid shifts and smooth transitions, adapting to driving style and conditions. The transmission is designed to handle the engine’s substantial torque output and contributes to the car’s impressive acceleration.
Driving Characteristics
The B3 Touring GT 3.0 delivers a remarkably balanced driving experience. The all-wheel-drive system, coupled with the responsive SWITCH-TRONIC transmission, provides exceptional traction and control in various conditions. Acceleration is brisk, with 0-60 mph achieved in approximately 3.3 seconds and a top speed of 305 km/h (189.52 mph). The engine’s torque output ensures strong acceleration in any gear, making overtaking effortless. Compared to the standard BMW 3 Series Touring, the Alpina B3 offers a more refined and comfortable ride, thanks to Alpina’s suspension tuning. While still capable in corners, the focus is more on grand touring comfort than outright track performance. The gear ratios are optimized for both acceleration and highway cruising, providing a relaxed driving experience at higher speeds.
Equipment & Trim Levels
The B3 Touring GT 3.0 comes standard with a comprehensive array of luxury and performance features. Interior appointments include premium leather upholstery, Alpina-specific interior trim, and sport seats. Standard technology includes a large infotainment display with navigation, a premium sound system, and a suite of driver-assistance systems. Optional extras include a panoramic sunroof, upgraded leather options, and various customization options through Alpina’s bespoke program. The exterior features subtle but distinctive Alpina styling cues, including unique front and rear bumpers, side skirts, and a rear spoiler. Alpina-branded wheels and exhaust tips further differentiate the B3 from its BMW counterparts.
Chassis & Braking
The B3 Touring utilizes a modified version of the BMW 3 Series Touring chassis, with Alpina-specific suspension tuning. The suspension features stiffer springs and dampers, along with a larger stabilizer bars, to improve handling and reduce body roll. The braking system consists of ventilated discs at all four corners, providing ample stopping power. The ABS (Anti-lock braking system) is standard, enhancing safety and control during hard braking. The car’s weight distribution is carefully balanced to optimize handling characteristics.
Market Reception & Comparison
The Alpina B3 Touring GT 3.0 has been well-received by automotive critics, praised for its blend of performance, luxury, and practicality. Compared to other high-performance wagons, such as the Audi RS6 Avant or the Mercedes-AMG E63 Wagon, the B3 offers a more understated and refined experience. While it may not match the outright performance of those rivals, it provides a compelling alternative for buyers seeking a more subtle and sophisticated performance wagon. Fuel economy, while not a primary focus, is respectable for a vehicle of this performance level, with combined WLTP figures ranging from 10.5 to 10.6 l/100 km.
Legacy
The Alpina B3 Touring GT 3.0 represents a continuation of Alpina’s tradition of refining and enhancing BMW vehicles. The S58 engine, coupled with the SWITCH-TRONIC transmission, is expected to be a durable and reliable powertrain. In the used car market, Alpina models generally hold their value well, due to their exclusivity and reputation for quality. The B3 Touring GT 3.0 is likely to become a sought-after vehicle among enthusiasts, offering a unique combination of performance, luxury, and practicality.
