Alpina BMW B7 BiTurbo Acceleration Sound!

This video features an insane fast 608HP Alpina BMW B7 powered by a N63 4.4L V8 BiTurbo racing against other an Audi R8 V10 Spyder on a closed airport! Vmax with rolling 50km/h start after 1000meter was 247,23 km/h.

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