Today, a well-preserved B10 Bi-Turbo is a head-turner at any concours, representing a unique moment in automotive history where turbocharged luxury and brute force were perfectly harmonized. It remains a compelling choice for enthusiasts who value substance over spectacle.
B10 Bi-Turbo Fastest Four Door Sedan: A Technical Marvel
Technical Mastery Under the Hood Drivetrain and Power Output Hidden beneath the elegant hood was a modified BMW M30 3. 6 seconds and reach a top speed of 174 mph, making it the fastest four-door sedan of its time.
This power was sent to the rear wheels via a robust 5-speed automatic transmission, a choice that prioritized smooth, rapid shifts and durability over the manual options available on the standard M5. Alpina’s ambition was to create a car that obliterated performance records while remaining a luxurious cruiser for the autobahn.
B10 Bi-Turbo: The Fastest Four-Door Sedan of Its Era
Through Alpina’s expert tuning, including forged pistons, high-strength connecting rods, and a meticulously mapped Motronic ECU, the output soared to an impressive 330 horsepower and 428 lb-ft of torque. The B10 Bi-Turbo could sprint from 0 to 60 mph in just 5.
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