nickc – Member
Maybe…It could also be from the symbol design from Bavaria.
I stand corrected (abbreviated for brevity – full text on link):
In July 1917, Franz Josef Popp registered the name Bayerische Motoren Werke, thus distancing the new company from the former Rapp Motorenwerke aero engine company… While the name was registered there wasn’t yet a new logo.
It was on October 5, 1917 the BMW trademark was registered… It featured the circular design of the Rapp logo but with the letters BMW at the top of the outer ring. The inner quadrants featured the Bavarian Free State colors of blue and white – but in the opposite order – as it was illegal to use national symbols in a commercial trademark.
The design was not in any way connected with aircraft engines or propellers. The idea that the blue and white had anything to do with spinning propellers comes from a 1929 advertisement, which featured aircraft with the image of the Roundel in the rotating propellers…
Origins of the BMW Logo (and the Spinning Propeller Myth)