![Tesla Model S at Supercharger site in Ventura, CA, with just one slot open [photo: David Noland]](https://images.hgmsites.net/tmb/tesla-model-s-electric-car-road-trip-upstate-new-york-to-southern-california-photo-david-noland_100500011_t.gif)
One of the obvious challenges of even the latest electric cars is that you can't drive them coast-to-coast as quickly as you can gasoline cars. It's far from impossible to do such a trip—especially if you own a Tesla and can use the company's DC fast-charging Supercharger network—but it will take longer. Even under optimal...