1987-1992 Alpina B3 (E30) 2.7 Allrad (204 Hp)

The Alpina B3 2.7 Allrad, produced between 1987 and 1992, represents a unique and highly regarded iteration of the BMW E30 3-Series. Built by Alpina, a renowned German automotive engineering company specializing in high-performance BMWs, the B3 2.7 Allrad wasn’t simply a modified 3-Series; it was a comprehensively engineered vehicle designed to offer a blend of performance, luxury, and all-weather capability. Positioned as a premium, hand-built alternative to the standard BMW offerings, the B3 2.7 Allrad catered to a discerning clientele seeking exclusivity and enhanced driving dynamics. It occupied the top echelon of the E30 range, exceeding the performance of even the BMW M3 in certain conditions due to its all-wheel-drive system. The “Allrad” designation signifies its all-wheel-drive configuration, a relatively uncommon feature for performance sedans of that era.

Technical Specifications

Powertrain & Engine Architecture

The heart of the B3 2.7 Allrad is its 2.7-liter inline-six cylinder engine, based on the BMW M20 block but significantly modified by Alpina. Unlike the standard BMW 2.5-liter or 2.8-liter engines, the Alpina unit featured a larger displacement achieved through an increased bore and stroke. Crucially, Alpina didn’t simply increase the engine size; they meticulously balanced and blueprinted the engine, incorporating high-compression pistons, a specially designed cylinder head with larger valves and optimized porting, and a performance camshaft. The engine utilized Bosch Motronic fuel injection, carefully calibrated to deliver a smooth and responsive power curve. The engine produced 204 horsepower and approximately 207 lb-ft of torque.

The all-wheel-drive system was a key differentiator. Alpina employed a viscous coupling system, distributing power variably between the front and rear axles. This system wasn’t a modern, electronically controlled setup; instead, it relied on a fluid coupling that engaged progressively as wheel slip was detected. The transmission was a Getrag 265 five-speed manual, chosen for its robustness and ability to handle the engine’s torque. An automatic transmission was available as an option, though less common and generally considered to slightly diminish the driving experience. The exhaust system was a bespoke Alpina design, contributing to both performance and the distinctive exhaust note.

Driving Characteristics

The B3 2.7 Allrad offered a unique driving experience. The all-wheel-drive system provided exceptional traction, particularly in inclement weather or on loose surfaces. This gave it a distinct advantage over rear-wheel-drive competitors, including the BMW M3, in slippery conditions. Acceleration was brisk, with 0-60 mph times typically around 6.8-7.2 seconds, depending on the transmission and specific vehicle weight. The engine delivered strong torque throughout the rev range, making it a flexible and enjoyable performer in everyday driving. The five-speed manual transmission offered precise shifts, while the optional automatic, though smooth, felt less engaging. The car’s handling was neutral and predictable, thanks to the all-wheel-drive system and Alpina’s suspension tuning. The steering was precise and communicative, providing good feedback to the driver. Compared to the M3, the B3 2.7 Allrad prioritized usability and all-weather capability over outright track performance.

Equipment & Trim Levels

The B3 2.7 Allrad was exceptionally well-equipped, reflecting its premium positioning. Standard features included leather upholstery, power windows, central locking, and an upgraded sound system. Alpina also added several unique touches, such as a distinctive three-spoke steering wheel, special Alpina gauges (including oil temperature and voltmeter), and exterior styling cues like Alpina-specific front and rear spoilers, and unique wheels. Optional extras included a sunroof, air conditioning, and a more advanced sound system. Interior trim was typically a combination of wood veneer and leather, creating a luxurious and refined atmosphere. The exterior was available in a range of colors, with Alpina offering several exclusive paint options.

Chassis & Braking

The B3 2.7 Allrad featured a modified E30 chassis, with several enhancements to accommodate the all-wheel-drive system and increased power. The suspension was upgraded with stiffer springs and Bilstein shock absorbers, providing improved handling and stability. The front suspension geometry was also revised to optimize handling balance. Braking was handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard equipment. The rear axle was reinforced to handle the increased torque and stresses of the all-wheel-drive system. Stabilizer bars were thicker than those found on standard E30 models, further reducing body roll during cornering.

Market Reception & Comparison

The Alpina B3 2.7 Allrad was generally well-received by automotive journalists and enthusiasts. It was praised for its blend of performance, luxury, and all-weather capability. Critics noted its superior traction compared to rear-wheel-drive rivals and its refined driving experience. However, some reviewers felt that the all-wheel-drive system added weight, slightly diminishing the car’s agility. Compared to the BMW M3, the B3 2.7 Allrad was seen as a more practical and comfortable car, better suited for everyday use. Fuel economy was reasonable for a high-performance car of that era, averaging around 18-22 mpg. Reliability was generally good, although the complex engine and all-wheel-drive system required regular maintenance.

Legacy

Today, the Alpina B3 2.7 Allrad is a highly sought-after classic car. Its rarity, combined with its unique blend of performance and luxury, makes it a desirable collector’s item. The engine is known for its durability, provided it has been properly maintained. However, parts availability can be a challenge, as many components are specific to Alpina. The all-wheel-drive system, while offering significant benefits, can be expensive to repair if issues arise. Values have been steadily increasing in recent years, reflecting the growing appreciation for these hand-built BMWs. The B3 2.7 Allrad stands as a testament to Alpina’s engineering expertise and its ability to create truly special automobiles.