BMW Alpina B5 Biturbo Brings 608 Horses to the 5-Series

BMW's most famous tuner turns its discerning twin-turbo eyes to the all-new 5-series, with predictably powerful results.

BMW's all-new 2017 5-series is hardly even here yet, but it's already packing serious performance: The upcoming M550i promises 0-62 mph in four seconds flat, four tenths faster than the current M5.

But that doesn't mean famed BMW tuner Alpina doesn't want to get involved. Lay your eyes on the BMW Alpina B5 Biturbo, packing 608 horses and 590 lb-ft of torque.

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According to Alpina, squeezing all that power out of BMW's 4.4-liter V8 is enough to rush the B5 Biturbo from 0-62 mph in just 3.5 seconds—the quickest car the tuning firm has ever produced—on the way to a top speed of 205 mph.

Electronically adjustable dampers control the motions of the signature 20-inch Alpina Classic 20-spoke wheels, while the 5-series' active rear steering aids in the big-body sedan's agility. Like the 7-series-based Alpina B7 xDrive, the all-new B5 offers all-wheel drive as standard for the first time in the history of Alpina-ified 5-ers.

And, yes, there's an achingly elegant wagon version that does 0-62 mph in 3.6 seconds with a top speed of 202 mph. It's almost assuredly never coming to the US.

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Alpina's offerings have always aimed for a slightly different result than BMW's own M offerings—the tuner seeks to offer effortless performance aimed at relaxed, fast-paced grand touring, not the frenetic apex-attacking aggression of an M machine. That kind of capability in the excellent new 5-series platform definitely sounds like a winning recipe.

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