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In your sentence are you referring to a BMW M3? Since Tesla also have an M3 (edit: albeit abbreviated) I was a tad confused by your second paragraph

WXLCKNO is referring to the BMW M3, specifically the "BMW Traffic Jam Assistant".

Tesla is technically Model 3, not M3

It is but a lot of folks shorten it to M3 as well.

A knowledgeable car person will never, ever call the Model 3 an M3.