I've had my car for over a year now and have done lots of road miles, and plenty of weekend miles too. I think the artificial piped-in engine sound is ridiculous and doesn't add anything but noise. Very annoying and it's not even a good sound - just a loud drone - and I mainly drive in Sport +. I don't drive in Track mode so guess that's even worse. Wish it had an adjustable interior sound function.
My solution is cheap, easy, and works really well. I have some left over Noico car sound deadening material from a home project (from Amazon) and fashioned it with some felt padding and those super strong magnets, three for each side, from a home supply store. My sound deadening pucks attach right to each baffle and each is slightly bigger than the baffle. They're held on by magnets so easy on/off and they dramatically reduce the drone. From the outside the layers are the felt (spray painted black), the sound mat, felt stuck to the sticky side of the mat, and magnets attached with silicone adhesive to the felt. I put them on a few months ago. They're invisible and we're much happier now!