The battery technology is the next thing that has to be improved. Otherwise these will never take off or be rational options. But it was government standards that have led to 400+HP daily drivers that get 20mpg and meet emissions. These regs aren't a bad thing as long as the tech can keep up with the regs. Personally, I'm for a cleaner planet and I wouldn't mind a bit if me and my wife's daily drivers were electric. Obviously, I'd be opposed to eliminating internal combustion altogether, but I think we are 50-80 years from where that could even be a remote possibility. I'm sure there will always be a place to fuel and drive a muscle car.
p.s - good article!!