Its from Sweden and I have the story for you. One of the M5's and M3 belong to one owner, the other belong to a friend. If I remember correct its somewhere in Göteborg.
Bayerische Motoren Werke AG, abbreviated as BMW is a German multinational
manufacturer of luxury vehicles and motorcycles headquartered in Munich, Bavaria, Germany.
The company was founded in 1916 as a manufacturer of aircraft engines, which it produced
from 1917 to 1918 and again from 1933 to 1945. Official website: BMW
(Global), BMW (USA)