Quoted from Brijam:
the cars tell you if you can make it there AND BACK when you use the in-car navigation, and warn you if you try to navigate somewhere that will run you out of juice.
If you start to run low your Tesla will also tell you what speed you need to drive to reach a charger as well.
Also, if you are running low on power you can just slow down. A 270 mile range battery can be extended to 400 miles at 25 miles an hour. That's slow as hell, but it's faster than walking or a tow truck.
And this is exactly why I do not like EVs. My car is NEVER telling me what to do or how fast to go, because it will bring me there the way I want to drive.
Just wait until EVs really get sold a lot and you poor guys are in a line of 5 or 6 cars waiting for your "fast" charger, 30 minutes a piece.
Also the "green" aspect does not apply to a Tesla. Why in the hell would they make cars that go so fast from 0-60 ? That is just so much waisted energy. If they would be green, they would make it so that every Kwh gets you as far as possible, not as fast as possible. What Tesla makes is a fun and fast car that is hiding the fact that you will become the slave of it, calculating every long drive and putting in a connector every time you park it.
As far as the cars go, I like what Tesla makes. Very much even, but the disadvantages outweigh the advantages very much. Here in Europe we do not have that many chargers yet and even a charger every 150 miles in USA does seem far apart.