Quote:
Originally Posted by cnicholson
Thanks for your responses. As with the E60, some early owners are reporting a performance boost following initial service, but I suspect it is just placebo/heavier right foot.
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If I'm not mistaking though, the e60 M5 had its 500HP (via power button) enabled after the first service at around 1200 miles. So the owners may be going from 400 to 500hp if they always drove with the power button on.