The great weakness of the Tesla S in the German market ist the German autobahn, where it runs out of energy very quickly (after an hour or so for aggressive drivers).OK, if you're averaging 200 km/h on the Autobahn then you will run out of energy pretty quickly. But this is just as true with ICE vehicles. If you're getting twice the energy consumption in an EV then you'll also be getting twice the fuel consumption in an ICE, and you'll have to stop and refuel pretty quickly.
So, with an EV, as long as there is a fast enough charger at the other end, who cares? You travelled 200km in that hour, you probably got where you wanted to go. Even if you spend 25 minutes recharging at a supercharger, you still got there quicker than if you drove at 100km/h!
Audi are already talking about 800V, ~300kW fast chargers that can recharge that 200km of range in 10 minutes. At these kind of speeds, the difference between recharging an EV and refuelling an ICE car becomes pretty negligable.
The Tesla S is not designed for sustained high speeds.
Simply not true. There's plenty of Tesla videos on YouTube showing sustained, comfortable driving at 200km/h+ autobahn speeds.