BMW 3-Series (Nashville Tennese) Lambo Doors, Talk about a difficult installation and you are guaranteed to have the bmw 3 series on the top of that list!.
Installing lambo doors on the BMW 3 series is complicated. Because not only do you have to fabricate a new resivor for the window fluid.
Also cut the factory welded hinges.
This is one of those installations that you only have once shot to get it right. There is no do-overs or puting the factory hinges back on if something goes wrong.