"It doesn't need to power the car for the "average" needs of the "average" commuter, it needs to power the car for all the needs of all the current auto-buying public.
This is just wrong. You want one magic car that will have "the best" of everything (range, passenger capacity, cargo capacity, cost, speed, performance, etc.). Just as there is no "best" internal combustion car that will meet "all the needs of all the current auto-buying public", there is no "best" electric car. There are only cars that are "best" for specific uses.
When looking at specifics of your WRX car, my Tesla has better performance (0-60 sub 5 seconds), less charge time (I never have to drive to a gas station and fill up... just plug it in at home), and lower cost (gas is expensive, electricity is cheap) than your Subaru. Plus, it's just a much nicer, safer car.