The latest thing I added is this ability to toggle the showroom view to a ‘summary’ view that shows you how many of each car you have, rather than an endless stream of them. This is togglable with a button, but it auto-guesses which view to show you based on how full the showroom is when you first open that window:
Here is the video 
I need to have that toggle in there to support both views because there is some functionality ‘lost’ in the summary view, as you then cannot select an individual car to see its views from customers, its applicable discounts, any defects or missing (uninstalled) features etc. Hopefully its all pretty intuitive and I don’t need any extra tutorial stuff for that?