Why not make a small one person EV commuter similar to the elio (elimotors.com) gas engine commuter which is supposed to launch next year. You'd simply give up the back seat for both lower battery storage and additional upper luggage area, which is currently extreamly limited.
Being a one seater most people would not want this car and it would not compete well with your larger vehicle's but, at a price similar to the elio, it would sell in large numbers and would appear coast to coast for people like me, students, pizza delivery fleets etc.
Not only would it display your technology "everywhere" it would also naturally expand your charge stations to new areas making the purchases of your larger vehicles more desirable.
I would think charging stations and the mindset of those not familiar with them are your biggest obstacles and a commuter that can be charged at home would work as an education tool and display your technology all over North America (I live in Canada).
I can see a car like this displacing the motorcycle market somewhat also as it is a safe all weather/all season alternative and would have that same sense of freedom--especially if the roof popped off (optional?).
With at least a 50KM range in cold weather, I'll take one, please, although I'd rather have double that range.
I have a name for it. The "Tesla Sampler".