2007 Alpina B3 (E90) Dimensions, Size & Specs

The curb weight of the Alpina B3 (E90) stands at approximately 1645 kg (3627 lbs). Its maximum permissible weight, which includes passengers, cargo, and fuel, is 2090 kg (4608 lbs). This weight ensures the car maintains a sporty feel and dynamic performance while accommodating additional load safely. The balance between its curb weight and maximum weight contributes to the car's stability, handling precision, and overall driving experience.

The Alpina B3 (E90) offers a luggage capacity of 450 liters (approximately 15.9 cubic feet). This volume is quite generous for a sporty compact executive sedan, providing ample space for suitcases, groceries, or sports equipment. The trunk design emphasizes practicality along with the performance character of the car, making it suitable for both daily commuting and weekend trips.

The Alpina B3 (E90) is outfitted with front tires sized 245/40 R18ZR and rear tires sized 265/40 R18ZR. These wider rear tires help enhance rear-wheel traction and stability, essential for sporty driving dynamics. Larger and wider tires like these improve road grip and cornering performance, allowing the B3 to maintain control and agility under spirited driving conditions. The low profile tires also contribute to a firm ride characteristic typical of sport-tuned sedans.

Yes, the Alpina B3 (E90) fits comfortably into a standard residential garage. Its width of 1817 mm (71.5 inches) and height of 1422 mm (56.0 inches) fall within typical garage door dimensions, which usually accommodate widths around 2400 mm (94.5 inches) and heights above 2000 mm (78.7 inches). The length at 4545 mm (178.9 inches) is also manageable within standard garage depths. Therefore, owners won't experience unusual difficulties parking this sedan indoors.

Compared to its predecessor, the E46-based Alpina B3, the E90 generation is slightly larger in all key dimensions. The increased length and width provide enhanced cabin space, improved comfort, and a more modern stance on the road. The growth in size reflects the general evolution of BMW's 3 Series during the transition between generations, allowing better accommodation of luxury and performance components without compromising driving dynamics.

The Alpina B3 (E90) sits comfortably within the compact executive sedan segment in terms of size. Its 4545 mm length and 1817 mm width are comparable to competitors like the Audi S4 and Mercedes-Benz C63 AMG of the same era. Its luggage capacity of 450 liters is competitive, offering practical utility alongside sporty dynamics. The thoughtful balance between performance-oriented dimensions and everyday usability gives the B3 a distinct advantage among rivals.

The relatively low height of 1422 mm (56.0 inches) gives the Alpina B3 (E90) a sporty and aerodynamic profile, reducing air resistance and improving high-speed stability. This lower stance also contributes to a lower center of gravity, enhancing handling and cornering capabilities. However, the drawback might be slightly reduced headroom and a lower seating position compared to taller sedans, which may affect comfort for taller passengers or those preferring higher driving positions.

At a curb weight of 1645 kg (3627 lbs), the Alpina B3 (E90) strikes a balance between structural rigidity and overall mass. While heavier than some competitors due to added luxury and performance parts, the weight supports stability and better road grip, which enhance driving precision and safety. However, this weight might slightly reduce fuel efficiency compared to lighter models. Still, Alpina's engineering optimizes powertrain performance to counterbalance any negative effects on acceleration and efficiency.

The dimensions of the Alpina B3 (E90) provide a well-balanced interior cabin space designed for comfort and driver engagement. The width of 1817 mm (71.5 inches) ensures adequate shoulder room, while the length supports ample legroom for both front and rear passengers. The compact executive sedan classification means space is optimized for four to five adult passengers comfortably. Combined with premium interior materials and sport-tuned seats, the B3 offers a refined, comfortable environment suitable for daily driving and longer journeys.