Here's a good reason to attend the build school before taking delivery of your Roadster. Our instructors showed us a great tip by running a Sharpie marker along the underside of the body and along the interior aluminum panels. If the Sharpie leaves any mark on the panel, the metal will need to be trimmed. If it is not trimmed, then later when the rubber seal is installed, the too-small gap between the body and aluminum will cut the seal. Guess who already had their body and aluminum removed before taking this class?