To Everyone who wants to do a lambo door hinge on their own here is a professional hinge that is made by decah that my friend is haveing put on his car. Just to show you the amount of craftsmenship and quality involved in making a well functioning hinge. Note our doors are really heavy so if anyone is to make a hinge you should use strong metal and will most likely want to weld the hinge to the actual frame because its to much weight to stress on the actual hinge itself supported by bolts