Not planning on trading in my Model S, but already I feel the age difference between the two when I test drive the MME and then go back to my almost 6 yr old computer car...Yes, I was joking. I traded in my Model S when I bought the MME.
The car makes a very retro-scifi on the outside speakers in EU, when backing up or going forward up to 25km/h.If only it sounded more like a space ship.