2017 Alpina B5 Sedan (G30) Dimensions, Size & Specs

The Alpina B5 Sedan (G30) has a curb weight of approximately 1940 kg (4277 lbs), which is the weight of the vehicle without passengers or cargo. The maximum permitted weight, including passengers and baggage, is about 2470 kg (5445 lbs). This balance reflects its powerful performance capabilities combined with luxury features.

The luggage capacity of the Alpina B5 Sedan (G30) is 530 liters (approx. 18.7 cubic feet), providing ample room for suitcases, groceries, or other cargo. Compared to competitors in the executive sedan segment, this baggage volume is quite generous, offering practical utility alongside its sporty design.

The Alpina B5 Sedan (G30) is equipped with staggered wheel and tire sizes for optimal handling: front rims are 8.5J x 20 with 255/35 R20 tires, and rear rims are 10J x 20 with 295/30 R20 tires. This setup enhances grip, stability, and cornering precision, reflecting Alpina’s focus on sporty yet comfortable driving dynamics.

Yes, the Alpina B5 Sedan (G30) generally fits into a standard residential garage. Standard garages typically measure about 2.4 to 2.7 meters (7.9 to 8.9 feet) in width and about 5.4 to 6 meters (17.7 to 19.7 feet) in length. Given the B5’s length of 4956 mm (4.956 meters or 16.3 feet) and width of 1868 mm (1.868 meters or 6.1 feet), it should comfortably fit with adequate space for opening doors and maneuvering.

With a height of 1466 mm (57.7 inches), the Alpina B5 Sedan (G30) fits well within the typical range of executive sedans, which often vary between 1400 mm and 1500 mm in height. This height ensures a low, sporty profile while maintaining sufficient headroom for occupants, contributing to both aerodynamic performance and passenger comfort.

Compared to its predecessor, the Alpina B5 Sedan based on the F10 generation, the G30 model is generally larger and heavier. The G30 version grew in length and width, providing more interior space and a more imposing presence. Curb weight increased due to added technology and comfort features, but improvements in powertrain efficiency and chassis dynamics offset any negative impact on performance.

The Alpina B5 Sedan (G30) competes directly with models like the Audi S6 and Mercedes-AMG E 53. Dimensionally, the B5 is quite similar in length and width but often excels with a slightly higher luggage capacity and a sportier stance thanks to its unique wheel/tire setup. Its weight is comparable, yet Alpina’s tuning delivers a distinctive blend of performance and comfort.

A curb weight of 1940 kg (4277 lbs) places the Alpina B5 Sedan (G30) in the mid-to-upper weight bracket for performance sedans. This weight balances the robust luxury features and structural reinforcement with high performance. Thanks to Alpina's engineering, the vehicle does not feel heavy during spirited driving, offering responsive handling, strong acceleration, and stable highway cruising.

Thanks to its substantial exterior length of nearly 5 meters, the Alpina B5 Sedan (G30) provides a roomy interior with comfortable seating for five adults. The generous width of 1868 mm also helps with shoulder room. The 530-liter luggage capacity adds to practicality for everyday use and longer trips, making it a compelling choice for those seeking luxury performance without sacrificing space.