Welcome T-E, congrats and pleased that you enjoy.
The sound is piped in.
http://jalopnik.com/5973177/this-is-...-by-a-computer
http://www.caranddriver.com/features...ined-tech-dept
Since you asked about Europe spec's. I asked my dealer about the part # for the side mirrors (wideangle/Aspheric, Auto Dim, Heated . They asked BMW Canada who then asked BMW Germany based upon my vin. I was informed that the part #'s are: 51 16 7 291 247 left & 51 16 7 291 248 right @$247 each. If you can confirm the part that would be appreciated. This price is reasonable as for F25 it is $638 each, crazy.
Anyhow T_E don't be shy, post when you can, as we are here to share and learn.