2015 Alpina B6 Cabrio (F12 LCI, Facelift 2015) Dimensions, Size & Specs

Standard home garages typically measure around 2400 mm to 3000 mm in width and 4800 mm to 6000 mm in length, with heights often exceeding 2100 mm. Given the Alpina B6 Cabrio's dimensions of 4894 mm in length, 1894 mm in width (2081 mm with mirrors), and 1371 mm in height, it fits comfortably within most standard garage spaces. However, due to its width with mirrors extended (2081 mm), you may need to fold the mirrors or have a slightly wider garage to ensure easy entry and exit without damage.

The Alpina B6 Cabrio has a body width of 1894 mm (74.5 inches) without mirrors. When the mirrors are opened, the width increases to 2081 mm (81.9 inches). This difference of 187 mm (7.4 inches) is significant for tight parking situations or narrow garages. Drivers should consider the mirror width when maneuvering or parking this vehicle in confined spaces.

The curb weight of the Alpina B6 Cabrio (F12 LCI, Facelift 2015) is 2020 kg (4453 lbs), while the maximum weight including passengers and cargo is 2430 kg (5357 lbs). This relatively heavy weight is due to its robust build, luxury features, and structural reinforcements needed for a convertible. The weight contributes to a stable and composed ride, but drivers may notice a slightly less nimble feel compared to lighter sports cars. However, Alpina's tuning ensures dynamic performance with smooth power delivery and precise handling.

The luggage capacity of the Alpina B6 Cabrio is 300 liters (approximately 10.6 cubic feet) with the rear seats upright. This space is moderately sized for a convertible, sufficient for daily use or light travel. When the rear seats are folded down, the luggage capacity increases to 350 liters (about 12.4 cubic feet). This additional space allows for greater flexibility in hauling larger or more items, although the shape of the trunk may be somewhat restricted due to the convertible top mechanism.

The Alpina B6 Cabrio is equipped with staggered wheel sizes for optimal performance and handling. The front wheels feature 8.5J x 20 rims with tires sized 255/35 ZR20, while the rear wheels have larger 10J x 20 rims paired with 295/30 ZR20 tires. This setup provides enhanced grip, stability, and a sporty aesthetic, contributing to the vehicle's dynamic driving characteristics and luxurious appearance.

The facelifted Alpina B6 Cabrio (F12 LCI, 2015) retains very similar dimensions to its predecessor model produced before 2015, with minor refinements mainly in styling and tech updates rather than size. Both versions measure close to 4890-4894 mm in length and approximately 1890-1894 mm in width (excluding mirrors). Height differences are negligible as well. The facelift primarily focused on aesthetic enhancements and mechanical upgrades, so in terms of car size, the changes were minimal, maintaining the grand touring comfort and road presence.

The Alpina B6 Cabrio stands out with its substantial size and weight among luxury performance convertibles. Weighing around 2020 kg (4453 lbs), it is heavier than many rivals like the Mercedes-AMG E-Class Cabriolet or Audi S5 Cabriolet, which typically weigh between 1700-1900 kg (3750-4190 lbs). Its length of 4894 mm (192.6 inches) is also on the larger side compared to competitors often measuring between 4700 to 4850 mm. This extra heft and size translate into a more luxurious and stable ride experience, though it might feel less agile than smaller, lighter competitors. Alpina balances this with powerful engines and precision tuning for a unique blend of performance and comfort.

The Alpina B6 Cabrio comes factory-fitted with 20-inch rims; front rims measure 8.5J x 20 and rear rims 10J x 20, which accommodate 255/35 ZR20 tires on the front and wider 295/30 ZR20 tires on the rear. This staggered sizing setup improves traction and enhances cornering stability by providing a wider contact patch at the rear where the engine's power is predominantly delivered. The low-profile tires contribute to sharper steering response and sporty handling, while the large rims complement the vehicle’s premium appearance and braking performance.

The Alpina B6 Cabrio distinguishes itself through a combination of exclusive Alpina tuning, luxurious craftsmanship, and a powerful driving experience on a BMW 6 Series platform. Unlike standard BMW Cabriolets, the B6 features Alpina-specific enhancements such as a finely tuned biturbo V8 engine offering significantly more power, unique aerodynamic bodywork, exquisite interior details like Alpina gauges and steering wheel, and high-performance suspension adjustments. This blend of luxury, exclusivity, and refined performance sets it apart from other premium convertibles, appealing to enthusiasts who seek exclusivity coupled with grand touring capabilities.