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E9X is a group of BMW 3-Series cars from 2006 to 2011. They all look and work almost the same, so car nerds call them all E9X like they're family.
My E9X is the only thing keeping me from crying in the parking lot.
E9X is just the 3-Series with a nickname that sounds like a secret code.
I swear my E9X has more personality than my ex.