I’m not encouraging this, but I wonder if the best way to get an AWD car fast would be to change your design every 8-12 hrs until you find the style that was just built and available to ship to your location? I assume the url would stop working at that point. If I was Tesla, I would lock that page down, so they can forecast the assembly line better and deliver more based on reservation date. Then, the next time they use a reservation system we can have faith that our place in line matters. You can’t change what color iPhone you want after you place the order.