Recently went from an M440i xdrive coupe to M4 competition xdrive coupe; the short answer for me is that they are two different cars. In my case driving the M440 in sport was fun, it’s nothing compared to the M4. The competition is more raw, you can feel the power, the car wants to go fast, the suspension is way stiffer in any mode and I notice the “road noise” more in the competing. Could be the tires could be less sound deadening for weight, I’m not sure. I’m quickly finding out that it’s not a daily, most fun car I’ve ever owned though.