Quote:
Originally Posted by sitcom323
This absolutely renders the M5 an emotional purchase as the M550i is now officially a BEAST. This will be a 0-60 in 3.5 car, guaranteed. Holy smokes.
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Slow down with the guarantees.
The current car has been dyno'd stock at 540HP, once again BMW underrating in a big way. This updated engine may be rated closer to the reported figures. Also, the M850 used different gearing, which would effect 0-60 performance. Need to wait until real world tests to see the new engines effect.