Video: 2014 Alpina B5 S spotted on the Nurburgring

BMW tuner Alpina has been spotted testing a prototype version of its new B5 S performance sedan around the Nurburgring in Germany.

Alpina B5 S

Based on the recently introduced BMW 550i, the Alpina B5 S is set to come with a tweaked version of the factory 4.4-litre twin-turbo V8. With 330kW on tap in factory form, the B5 S is expected to be almost on par with the M5, producing around 400kW and 700Nm.

With slightly more torque than the 680Nm M5, the Alpina goes for a more subtle approach to speed and performance. Fuel economy is also a thick part of Alpina’s tuning philosophy, so we could expect drops in fuel economy even with the increased power.

In other areas, the B5 S looks like it will feature a traditionally discreet bodykit with a new lip front spoiler, a lip spoiler at the back, and a set of fine-spoke alloy wheels.

As you can hear in the video below, provided by TouriClips YouTube channel, the B5 S comes with a smooth exhaust system which gives off a svelte V8 whoosh.

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Brett is the editor and founder of PerformanceDrive. He's obsessed with driving, having played with Matchbox cars until he was tall enough to drive a real one. After initially working as a mechanic, Brett earned a degree in journalism and entered media as an editorial assistant at Top Gear Australia magazine. He then worked at CarAdvice. His dream is to live next door to the Nurburgring in Germany.