Audio and connected services seem to be very important to a few purchasers from some of the posts I have read on here. I enjoy listening to the radio and music but I am not an audiophile. As Herbie says, it is a question of personal tolerance. I do find it somewhat perplexing that you buy a car based on the audio system. There are so many variables in a car - speed - road surface noise - tyres - that I do not think it is necessarily the best place to listen to wonderful music. To build a car around an audio system, seems somewhat odd. As Herbie said, unless there is a fault with the ML system, I would say his 1% to 99% could be changed to 10% / 90%. The car is being bought to transport you from A to B not place you in the Albert Hall.