Middle Car Version 1

Version 1: Due to the middle cars having a ball joint and not being able to print a successful "bridge" over the ball joint connector (two-screws area) I currently am going around it. The two side screws do not seem ample enough to hold the assembly, so I made a third hole in the assembly to hold the it strongly in place. This requires a small hole to be drilled in the car, but it doesn't affect anything. Future versions, may not need this extra hole, so stay tuned.