I'm sure it's already been suggested, but what I would find very useful when turning up at a supercharger centre is to see how complete a station is to finishing a charge. When you pull into a petrol station, you don't mind waiting as you know it won't be long. But at a supercharger centre, you have no idea how long you might have to wait if they are all full. They ideally should be positioned so you can drive through, that way cars can queue behind one another. I'm guessing the vision though is probably something else - like a notification of which bay to drive into - or even the car moving itself. Being able to reserve a station or knowing how long the wait can be expected on arrival would be good, then you might skip a station and go for the next one if you have the range spare. All things I've been thinking about since considering a long trip from London to Megeve in the French Alps.