Streamlining is important.
http://www.electricracenews.com/2014/08/history-making-race-with-streamlined.html
And especially when energy is in short supply as it currently is with all electric vehicles. This one's about motorcycles, but it all applies to 4 wheels as well. So why does the original Honda Insight still have a considerably smaller CdA than current hybrids and electrics? The Tesla is quite aerodynamic with a reasonably good Cd but it's too big. Things like the BMW i3 are just terrible.
SeeAlso http://www.craigvetter.com/pages/2014-streamliners/2014-Kowitz-streamlines-a-Brammo-p76.html which details the race bike and what they did with it.
The current state of electric vehicles are really one step up from the show prototypes. They need the aero help. So they should be a good showcase for what's possible. Even a simple style change like covered rear wheels and smooth surfaced front wheels could be made acceptable by being used on electric vehicles first. Fuel economy is already a selling point in most markets so keep pushing the market towards acceptance of aerodynamics as a style.
What we shouldn't be doing with electric vehicles is copying the worst and most inefficient designs the way the BMW i3 tries to look like a "futuristic" SUV. Even the rather ugly Prius is preferable to that.
Motorcyclists are notoriously conservative in their feelings about style. So there's not much chance of properly streamlined sports bikes while they're banned in racing. And they don't look like a pastiche of a 50s bike gang so won't appeal to the cruiser people. But then there's big scooters and European style touring. The BMW, Suzuki, Honda, Yamaha big scooters could be so much more aerodynamic while still retaining the big luggage space and all their strengths and utility.
The future will be interesting and probably nothing like how we imagine :)