Are they completely muting the engine? 'Cause if not, they aren't replacing it with something fake, they are enhancing it. Just like they enhance the steering, suspension etc. with mechanical or digital aids.
BMW have been enhancing exhaust notes in one way or another for years. Even my MY2001 330i had an acoustically controlled exhaust. Now they are enhancing it digitally. In reality it's a great idea; 99% of the effect, but light-weight and low-cost.
Like I said. I see it as a step too far. I want to wind the windows down and hear it crescendo through a tunnel. Not find that from the outside it doesn't sound of anything because they relied to heavily on the engine sound played through the speakers




