I just watched a video with a very dedicated professional. He was in charge of door acoustics at a major car manufacturer – in effect, his job was to make sure that the door makes a satisfying sound when you close it.
It is this kind of attention to detail that differentiate brands. An Audi shares 80-90% of components with Volkswagen and Skoda, but still manages to command a hefty premium.
Are you building a Bentley, an Audi, a Volkswagen, a Skoda or a Lada? Don’t spend time on the door acoustics unless that’s something your users value and are willing to pay for.