I was an early reservation holder for the Model 3 but never placed an order. I just went in for a test drive and was told that the dealership has a Model 3 obsidian black (unused) available for delivery now. Does anyone know of any changes in the build from when they were still making the Obsidian Model 3 up to now? I had read that they are continuously making changes to the build but can't find a list of any actual changes. Thanks!