Oh I have another idea, a ecological car that can compete with fossil fuel car. What I mean with that is offering the same interior volume, weight and range and such. Even with Tesla on it, we are far away from being able to replace current cars with electric cars.
Max range for a tesla S P100D here in Belgium is 446km at 120km/h, 20°C and AC on. That is half of many fossil fuel cars. That is using their range calculator from the Belgian site. When configuring the P100D they do claim a range of 632km, a huge difference if you ask me. If we take a 150pk petrol VW passat to compete with it (I know, exterior dimensions a tad smaller and lighter and such) than it has a theoretical range of 1150 km (using combined fuel consumption, highway only would result in higher range). If you don't find that a fair competitor (lower pk, lower weight etc) than you can have a look at the 240pk diesel passat which has a theoretical range of 1200km. Does it matter for everyday driving? No it doesn't, but for long drives it has a big influence. Not only does the tesla has to be charged twice for one fuel stop with the passat, it takes longer to charge. From the Belgium page, they say the Tesla fast charger can give you 270km of range in 30 minutes. That has to be a pain in the ass for long drives.
And not only that, I am a mini-van/real SUV kind of person. I haul big things from time to time, and than a sedan isn't working out. Even a regular station wagon can be too small. So I will be impressed if there will be electric minivans/SUV's that offer the same range as todays cars. Until than, I will not really consider those expensive electric cars. Maybe batteries aren't the best way to store energy for cars, so hopefully other solutions such as hydrogen cars will be for the near future. Those are more promising than the electric city cars from today.