BMW’s updated 523-hp M550i sports sedan is almost an M5, but its handling and acceleration aren’t quite there.
Ingrained somewhere in the consciousness of car lovers everywhere is that V-8s matter. BMW appears to agree and offers the V-8-hungry customer an entire menu section. There are 600- to 617-hp twin-turbo V-8s in M division vehicles (M5, M8, X5M, X6M), and the brand also sells a detuned 523-hp version of the M division’s twin-turbo V-8 in the M850i, X5 M50i, X6 M50i, X7 M50i, and in the M550i.
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