Rally Corsa Shop design of BMW E46 fiberglass doorcards. The original doorcards are so thick you will have problems with rollcage. Also, if you want to use electric windows you cant use straigt sheet of aluminum or fiberglass due the motor. This design gives you room for rollcage and you still can use electric windows. You can make the door strap from nylon as in pictures. In the price you get four door cars. You need to refine the adjustment shape yourself. Delivered in plain fiberglass gelcoat. Ask for kevlar or carbon versions. When ordering mention if you want thin and light, or a bit thicker and stiff versions.