1991 Alpina B10 BiTurbo: A Rare Gem on the Market

The Alpina B10 BiTurbo emerged in an era when the pursuit of speed and luxury reached new heights. In 1991, this sedan was not just another BMW; it was a high-performance machine capable of achieving speeds up to 180 mph, making it the fastest sedan in the world at the time. This accolade placed it in the company of supercars like the Ferrari F40 and Lamborghini Diablo. However, unlike its flashy counterparts, the B10 BiTurbo offered a more understated elegance, wrapped in the familiar guise of a BMW 5-series chassis.

Alpina's journey from a tuner to a recognized automobile manufacturer is an inspiring tale of innovation. Founded by Burkard Bovensiepen in the 1960s, Alpina carved a niche by enhancing BMWs' performance and aesthetics. By 1983, the German government recognized Alpina as a distinct manufacturer, granting it the freedom to create vehicles like the B10 BiTurbo. Each car began as a BMW 535i shell, which Alpina meticulously transformed into a bespoke machine. This included replacing the original VIN with one of Alpina's own, signifying the transformation from a standard production vehicle to a custom-handcrafted masterpiece.

Under the hood, the B10 BiTurbo boasts a re-engineered 3.5-liter inline-six engine. Alpina's engineers enhanced this powerplant with forged Mahle pistons, reworked intake and exhaust ports, and twin Garrett T25 turbochargers. With an adjustable boost setting, drivers could harness up to 360 horsepower and 384 pound-feet of torque, making it a formidable presence on the autobahn. The combination of a five-speed manual transmission and a stiffened chassis ensured not only high-speed stability but also a thrilling driving experience, akin to piloting a road-going private jet.

The interior of the B10 BiTurbo reflects Alpina's commitment to luxury. Signature stitched Alpina fabric adorns the sport seats, complemented by burled wood trim and an Alcantara headliner, creating an environment of understated opulence. Externally, the car is instantly recognizable by its 17-inch 20-spoke wheels, a hallmark of Alpina's design ethos. While these wheels present a challenge to keep clean, they serve as a visual cue to enthusiasts who appreciate the car's pedigree and rarity.

As the auction for this particular Alpina B10 BiTurbo draws to a close on October 15, enthusiasts and collectors alike have a rare opportunity to own a piece of automotive history. With a modest 59,000 miles on the odometer, this example remains in good condition, promising an exciting blend of performance and legacy. While it may not attract the same attention as a supercar, for those in the know, the B10 BiTurbo represents the ultimate expression of Alpina's craftsmanship and passion for high-performance luxury.