Here's one I didn't see listed yet:

Find out which (optional) extras were fitted to your BMW from the factory:
bmw.com/ETK



Click on electronic parts catalogue and input the following:
U: eu111111
P: bmwetk1

Input the last 7 digits of your vehicles VIN and click on the button ->>


Then click on "options" above:


Once you've clicked "options" a pop up is displayed with list of (optional) extras fitted to your vehicle:


Credits to Ivari from bmw-club.ee for the find

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Alles unter 6 Zylinder ist Asozial

323iAT M-Tech (M52B28 swap) on 17" SS 44's & Rokkors + 270' tints.