1999 Alpina B3 Coupe (E46) Dimensions, Size & Specs

The curb weight of the Alpina B3 Coupe (E46) ranges from 1450 to 1620 kg (3197 to 3571 lbs), depending on the specific configuration and options. The maximum weight is between 1950 and 2040 kg (4299 to 4497 lbs). This relatively moderate weight for a coupe of its era helps maintain a balanced performance profile, allowing for spirited driving with nimble handling, while still providing solid structural integrity and comfort.

Yes, the Alpina B3 Coupe (E46), with its length of 4488 mm (176.7 inches), width of 1757 mm (69.2 inches), and height of 1367 mm (53.8 inches), fits comfortably into a standard single-car garage. Most domestic garages, which typically measure around 5500 mm (216.5 inches) in length and 2700 mm (106 inches) in width, provide ample space for the car with room to walk around. Owners should always consider the clearance for doors and additional storage space, but parking and storing this coupe poses no unusual challenges.

The luggage capacity of the Alpina B3 Coupe (E46) is 410 liters (approximately 14.5 cubic feet), which is fairly generous for a two-door coupe. This capacity allows for decent storage of everyday items or weekend luggage, making it practical despite its sporty design. Compared to other coupes from the late 1990s to early 2000s, the B3 Coupe offers a competitive cargo space, balancing performance and usability without compromising the sleek coupe proportions.

The Alpina B3 Coupe (E46) is equipped with rims sized 8J x 18, 9J x 18, with corresponding tire sizes including 225/40 R18, 255/35 ZR18, and 225/40 ZR18. These relatively wide and low-profile tires contribute to enhanced grip and precise handling, especially during high-speed cornering and dynamic driving. The 18-inch rims balance style and performance, ensuring a firm but comfortable ride, which complements the car’s sporty yet luxurious intent.

Compared to its predecessor, the Alpina B3 E30 (the model prior to E46 generation), the B3 Coupe (E46) is larger in every critical dimension. The E46 generation extended the length to 4488 mm (176.7 inches) from the shorter E30’s sub-4400 mm length mark, increased the width, and lowered the height slightly. This growth provided more interior space, enhanced stability, and improved aerodynamics, marking a significant evolution in both comfort and performance without sacrificing the distinctive Alpina sporty character.

When compared to similar German sport coupes from the same period, such as the BMW M3 E46 and the Audi S5 (early models), the Alpina B3 Coupe holds its ground with a slightly more restrained width than some competitors but comparable length and height. Performance-wise, the B3 is known for its unique blend of luxury, power, and tuning finesse characteristic of Alpina, often favoring smooth power delivery and comfort combined with sporty handling, contrasting the more aggressive M3 but offering a compelling alternative in the premium sport coupe segment.

The curb weight of the Alpina B3 Coupe (E46) ranges between 1450 kg and 1620 kg (3197 lbs to 3571 lbs). Differences in weight arise primarily due to variations in engine tuning, optional equipment packages, and specific trim levels throughout the production years from 1999 to 2006. Models with additional luxury features or performance upgrades might trend toward the higher end of the weight scale, while base or early production models tend to be lighter, which slightly impacts fuel efficiency and handling characteristics.

At 1367 mm (53.8 inches) tall, the Alpina B3 Coupe (E46) is relatively low-profile, which contributes to its aerodynamic efficiency and sporty design. This height supports a low center of gravity enhancing handling performance, especially on winding roads. However, the compact height may reduce outward visibility compared to taller vehicles, requiring drivers to be more attentive when maneuvering, especially in urban settings or parking situations.

As a 2-door coupe with dimensions of 4488 mm in length and 1757 mm in width, the rear seating of the Alpina B3 Coupe (E46) typically provides space for two passengers in the rear, but legroom and headroom are limited due to the coupe design. While suitable for short trips or occasional use, long journeys may feel cramped for adults in the back seats. The focus of the car is more on driver and front passenger comfort combined with performance, with rear accommodations being more of a secondary feature.