Patented engine noise

[lovex5]

I had a 2005 E53, I love the engine sound when I crusie on highway. the sound was very crispy and pleasant. my E70 doesn't have the sound anymore. my previous sales told me BMW applied patent for the engine sound.

[Penguin]

Perhaps, but I doubt they got the patent. Harley-Davidsons have an even more distinctive sound, and the U.S. government rejected their attempt to patent (actually trademark) the sound. I doubt BMW would have any more luck than Harley did.