Overview

The BMW Alpina B3 3.3 Cabriolet represents a rare and highly desirable alternative to the standard E46 performance range, combining understated luxury with Alpina’s signature engineering upgrades. Finished in blue with a black leather interior, this example offers a refined yet engaging driving experience that sets it apart from conventional BMW models of the era.

Unlike a typical 3 Series Convertible, the Alpina B3 is hand-finished with bespoke mechanical tuning, subtle styling enhancements and a focus on high-speed touring capability. The 3.3 litre straight six delivers smooth, effortless performance, perfectly suited to both open-top cruising and long-distance driving.

With just over 70,000 km recorded and a strong auction grade, this example stands out as a well-kept and usable modern classic. Alpina models continue to gain recognition among collectors, and cabriolet variants remain particularly scarce.

Auction Details

• Auction Location Yokohama
• Auction Date 14 April 2026
• Start Price £5,200
• Autoselecta Guide Price £6,000 to £8,000
• Required Deposit £1,500

Bids must be in on 13 April 2026 before 9pm UK time

Key Facts

• Engine 3.3L Alpina-tuned inline six
• Fuel Type Petrol
• Transmission Automatic
• Drivetrain Rear wheel drive
• Overall Grade 4.5
• Interior Grade B

Mileage

• 70,210 km
• 43,626 miles

Why This Car Matters

The Alpina B3 3.3 occupies a unique position in the performance car landscape. Developed independently from BMW’s M division, Alpina models focus on refined performance rather than outright aggression, offering a more mature and composed driving experience.

Collectors are increasingly recognising Alpina vehicles for their low production numbers and distinctive character. The B3 3.3 Cabriolet is particularly appealing due to its rarity, blending open-top motoring with bespoke engineering and long-distance usability.

As values of analogue performance cars continue to rise, well-kept Alpina models represent a compelling opportunity for enthusiasts seeking something both exclusive and usable.

Features and Equipment

• Alpina 3.3 litre engine upgrade
• Automatic transmission
• Black leather interior
• Convertible soft top
• Aluminium wheels

Condition Overview

This is a Grade 4.5 vehicle, indicating a high-quality example with only light wear consistent with age and mileage.

The exterior presents well with only minor cosmetic imperfections expected for a vehicle of this age. The interior shows light wear, including some seat and steering wheel use, but remains in good overall condition.

Inspector notes indicate minor scratches (A1 level), light interior wear and some wheel marks. Additionally, there is a noted issue with the right electric mirror operation. These are typical age-related items and do not detract significantly from the overall presentation.

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Summary

A rare and well-presented Alpina B3 3.3 Cabriolet with desirable specification and strong provenance. This is an excellent opportunity to secure a refined, low-production performance convertible at competitive auction pricing.