I think when gas hits $6 a gallon, sales will pick up. Sales for Feb have picked up on the Leaf.
Not necessarily. You'll still be dealing with the mentality that people want SUV's for "safety" reasons. And people's attitude still remains that if they can afford it, they'll deal with it.
A few pages back you also made mention of the higher number of vehicles in Europe that are diesels. To understand the success of diesels in Europe one first has to acknowledge that the cost per litre of petrol and diesel is far closer than the very wide distance between our per gallon cost here. Also, many of the smaller cars offer some pretty impressive little motors with some giant torque figures (e.g. Citroen C3's 1.6L HDi's). Most of the engine options available on the smaller vehicles in Europe provide similar sized gasoline and diesel options with very similar power. The immediate advantage to them is the far superior mileage they're getting with the diesel. A 15% increase in fuel economy is an immediate profit in their wallets. Here a 15% improvement puts you at about a break even because of our higher diesel cost compared with gasoline.
IMHO, the future in electric vehicles will be ones where the diesel/traditional powerplant act as a generator for charging the batteries and the vehicle permanently runs on the electric motor with the fossil fuel powered generator only turning on as needed.