EV1 required high voltage ( 240v) and special "paddles" so you could only charge it at home. The charger was 1.5'x2'x5' and had heat sinks, and was about the size of a gas pump. I guess there was an impractical 120v "travel" charger just to get you by.
That's how GM engineered it to fail.
PHEV that use 120v are ideal.... but are so slowwwww to charge.
Check this out:
http://en.wikipedia.org/wiki/General_Motors_EV1
Betcha didn't know there was a HYBRID version of the EV1 that got 100 MPG! The EV1 packs were 3x the size of today's PHEV, and had the same 50-75 range as today's PHEV.