Discovering the Alpina B12 6.0: A BMW Enthusiast’s Dream
For any BMW aficionado, encountering an E38-generation Alpina B12 6.0 is akin to a divine experience. This model not only represents the pinnacle of the 7 Series but also stands as the finest B12 variant, with a mere 94 units ever produced. The excitement was palpable when Sreten from M539 Restorations received an email from a dealership offering one at a bargain price. However, there was a twist: a previous owner had converted the majestic V12 engine to run on liquified petroleum gas (LPG), similar to the propane used in summer grills.
The LPG Conversion: A Controversial Choice
Upon inspection, the Alpina revealed a complex array of LPG injectors, hoses, and brackets attached to the intake manifold, marring the iconic Alpina design. The conversion extended to the trunk, where a large LPG tank was concealed, significantly reducing storage space. This modification was seen as a disservice to the automotive masterpiece.
Under the Hood: The Alpina B12 6.0’s Engineering Marvel
The original BMW V12 engine, known as the ‘M73’, was enhanced by Alpina to a 6.0-liter capacity. This upgrade included high-compression Mahle aluminum pistons, improved camshafts, and modified intake and exhaust manifolds, culminating in 424 horsepower and 443 lb-ft of torque. Despite a modest 0-60 mph time of 5.9 seconds, its top speed of 181 mph rivaled that of a 996-generation Porsche 911 Turbo, all while offering more space and luxury.
Why Convert to LPG?
The decision to switch to LPG likely stemmed from cost savings and environmental considerations. LPG is cheaper and burns cleaner than gasoline, producing fewer emissions. For a vehicle as fuel-intensive as the Alpina B12, this could have been an attempt to minimize its ecological footprint.
Restoring the Alpina B12 6.0 to Its Former Glory
Sreten’s acquisition of the Alpina B12 marks the beginning of a challenging yet rewarding restoration project. The goal is to remove the LPG system and return the vehicle to its original state. Despite the anticipated difficulties and expenses, the endeavor promises to revive one of the most exceptional luxury sedans ever made, ensuring its legacy continues to captivate enthusiasts and viewers alike.




















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