[faithkap]

I have a relatively new 650 convertible with the M package. Since taking ownership I have had a shaking when the car is accelerating when going over 60mph. You can really feel it on cruise control every time it accelerates going up an incline. My techs at my dealership both felt this vibration. They called in the BMW rep and after test driving he commented that it drives the way it was designed. I sincerely doubt that BMW designed a car to shake. I contacted corporate customer service and they were no help. He basically said there is nothing he can do. Is there anyone out there that has had this same problem. My techs told me that they have had 7 series and X6's come in with the same problem when they have the M sport package installed. I thought I was getting an upgrade when I got the M package but obviously they have not perfected it.