Here's one I didn't see listed yet:
Find out which (optional) extras were fitted to your BMW from the factory:
Click on electronic parts catalogue and input the following:
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
323iAT M-Tech (M52B28 swap) on 16" Style 42's & H&R Race w. yellow Konis + 270' tints.