I think the smaller EVs currently on the market can fill a niche in America for city commuters, but only if they're cheap, and I think you'd be stretching their limits for faster highway commuting or longer travel. The sedan sized EV is I think the smartest choice for EVs in the American market, but they're still too expensive.
Plug in series hybrids might be a good stop-gap, as they're cheaper and solve some of the range and size issues current EVs have. You can have a smaller car, still capable of good speed and range, and at half to a third of the cost of an equivalent performance EV.
For anyone not aware of the term, a series hybrid is an EV drivetrain that has a smaller battery and an auxiliary petrol generator onboard to fill the battery if it gets low, or you demand more power from it. At first thought, that sounds ridiculous, but we're talking about compromises to fit specialty requirements here, and in that context they make a lot of sense. (also good EV conversion potential, since all you do is upgrade the battery and ditch the petrol engine once battery prices make sense)