Attention E60 M5 owners this normal?

[ant123456]

Do you all have a simulair whine in the back ground blipping the throttle? Hard throttle the noise blends into the background.

http://vid18.photobucket.com/albums/b149/ant123456...

Could do with knowing, don't want to be kicking the dealer who sold me the car for no reason.

[ant123456]

Cold and when warmed up.