Interesting... sounds like the info that I have been getting from other sources.
My PhD work has been with automobile dependence and fuel economy. Electric vehicles with battery storage is not very feasible IMO. Maybe for specific trip/environments, but other options are the future. The electric motor, however is here, we just need to get away from using stored energy (batteries) and use more hybrid/power generation. That is basically the idea with hydrogen. In the mean time, we can actually use diesel to charge/power the electric motor and less intensive battery and have pleanty of mobility at a very efficient rate. (Think WW2 submarines, it works, and even the boys at TG did this). heck, we could have nuclear cars with this theory, think about the impact on nascar... oh no, they have the bright green flag out as the result of some fall-out coming from Blinkey-Bob Jr car and a small radition leak in turn four.
Other things holding EV ups is federal regulations involving low-speed electric vehicles... some research would find some work of mine... deep in the murky area of google scholar searches