Of course I’ll do him a favor. At the rear is M40i, which means I have the 340 hp in-line six-cylinder under the hood. And, yes, it sounds. Discreet but sporty. A little sportier in sport mode, but always with a deep bass vibrato. Down there, where you can feel it in your stomach, it touches you the most. Not only when it echoes off the walls in the car wash.