Allow me to make a few more non judgmental thoughts and opinions on this new type of vehicle.
The technology for electric vehicles goes back to the early 30's. By the mid 50's electric golf carts gained wide acceptance. The technology for practical electric vehicles has been around for at least 60 years. We started experiencing “gas shortages” in the mid 70's, 40 years ago. Now all of a sudden, there is a rush to judgment to save the planet with electric cars.
I am as green thinking as anyone. I recycle, take my used oil to redemption sites, properly dispose of batteries etc. It is my sincere hope that we could eventually have electric vehicles, that give us the same dependability and practicality of present day internal combustion engines. I don't think using a Cadillac is the way to go for experimentation. I remember a time when Oldsmobile was the “canary in the cave” for Cadillac. i.e. the 1966 Oldsmobile Tornado, with front wheel drive, first out of the gate. This was followed by the 1967 front wheel drive Eldorado.
Not trying to be political, but, like all new technology, its going to take the rich to accept these cars to bring down the price to the point that the average American can afford one. I seriously think that those of means of going to be buying either the Volt or the ELR in any great numbers. I think most people still purchase automobiles out of necessity and pleasure. Since they are the second biggest expense most of us have, I don't many people are going to spend much more then they can afford. Of course someone just purchased the original Batmobile for more then $4,000,000. Go figure.