The 750 is one mean driving machine. My wife and I love it. While this is not our first BMW it is our first 750 and we would not own any other series. When driving you do not hear nor feel the outside. It takes the road like it owns it and when pick up is needed other cars are in your dust with their mouths open.
There is just not one favorite thing. Just love the whole car.
The car is great as it is... would not improve one thing.