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I thought BMW were making cars way before then.
Yes. They were making cars long before then. Pre war their main factory was in Eisenach. BMW had some nice-ish cars such as the 1930's 328
But after world war 2 the Eisenach factory was on the wrong side of the Iron Curtain controlled by the soviets in East Germany. But the 'soviet BMW' kept making cars with 'BMW' logos without BMW in Munich's permission while all BMW in Munich could make, having lost their factory, was pots and pans.
Wasn't till the early 50's that Munich managed to get the soviet Eisenach factory to change its name.
The Eisenach company changed it's name to EMW but kept the same logo - but red instead of blue and kept churning out cars from the old BMW tools
till the USSR pulled the plug and the factory, in communist east german control, made Wartburgs.
But. Anyway. I see a few people with red BMW badges instead of Blue. Now you know where the red BMW badge design comes from. It should say EMW