I find all this talk about steering feel etc to be pretty comical. Steering "feel" has nothing to do with handling limits of the car. For those who are complaining have you taken the 535i or 550i to the limit and gotten in trouble because you are about to break traction and the car didn't communicate that to you? If not, how are you defining "numb" steering? Are you judging it by how "tight" the steering wheel feel? The 550i I test drove was not bad at all and I've owned and driven some cars that have very good steering.

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2013 M5 - Euro Delivery 11/5
2008 E93 M3
2005 Ferrari F430
2011 550i M-Sport