Current battery technology can't provide adequate support for such large vehicles. If you're interested in the other side of the horizon, check out the Sparrow. You can buy the Sparrow for about a third of the cost of leasing the EV1 for three years. I got a ride in one of their prototypes once, by wandering into their shop and asking questions. It looked great, and seemed to drive well.
Interest continues to be high.
Solar panels don't really give enough juice to impact the battery range, but it's a nice idea.