All I am saying is you can do this in a city:
https://goo.gl/maps/8DpXW51Nj7L2
360-degree inside view:
https://goo.gl/maps/coSh42hjzmn
Right, or any Tesla showroom here in the States (see the one in the Pru)
The difference here isn't one of architecture but one of corporate structure and business regulation. The typical US car dealership model is built around third-party dealers selling the inventory that sits on their lots; they buy cars from car companies then keep them sitting around on their lots until they are able to sell those exact vehicles to customers, much like at any other typical retail store. You don't buy your car from Jaguar, you buy it from Herb Chambers. This requires a lot of space to stock inventory.
The way Tesla does it (and the way I understand it to be done more commonly in Europe and other places) is that the "dealership" is only a showroom where you go, look at a floor model, take another model for a test drive, and pick out the features that you want. You then order the exact details of what you want and your actual car is produced/procured off-site and delivered to your door. No inventory is actually kept at the dealer.
This frees up a bunch of space at the dealerships and allows the customer more options to customize their exact vehicle. They can choose from anything they want, not just what is available on the lot. It takes more time to receive final delivery of your car this way, but new car purchases usually aren't something that needs to happen
right now anyway. This format also cuts out the middleman, as the customer buys directly from the car company and not from a third-party dealer.
However, this is illegal in many states, something that Tesla has been
struggling against for years. States have established laws prohibiting car companies from selling directly to customers, and requiring them to work through these semi-independent dealer middlemen. Thus, you can't order directly from the manufacturer and are more likely to have to choose from whatever cars the dealer has previously purchased and has sitting around on the lot.
If Tesla ends up prevailing in their legal efforts to overturn these laws (and I hope they do) and all car companies start selling directly to the consumer, then there will be much less need to keep new cars sitting around at dealers on inventory. There will always be some "car lots" (especially for used vehicles) but they can stay in places with cheaper real estate.
Jeez, I sound like "Joel N. Webber II" droning on about Tesla...