What I've read, is that due to comparable various manufacturing pollution with both IC's and EV's, the EV's are not really green compared to an IC vehicle until they reach about 50K miles. After that is when they have accounted for their manufacturing pollution by reduced operating pollution, and start passing up the IC vehicles with their fuel burning emissions.
If they last their estimated 200K miles, they've also recouped the pollution for their replacement already,+100K of relatively pollution free driving. Relatively, because there is obviously pollution produced in generating electricity, but the theory is that the point source pollution of a power plant is easier to contain/control than the what is given off from millions of IC engines dispersed throughout the country/world.
Like GM, and probably others to a lesser level, VW decided that with the Fed rebates they could charge way more than the vehicle was worth. To make the VW BuzzID case even worse, was the low range it has, which along with the high price, was something the "cute factor" just couldn't overcome.
The Fed should just stay out of it, and let the vehicles sell themselves on their own merits. Whenever the Fed offers rebates on some energy saving technology, there always seems to be an equal or greater price increase by the manufacturers. Case in point was our geothermal heat pump. When I had the original one installed there were no rebates, when it needed to be replaced 10 years later, now with the Fed rebates offered, it cost me twice what the original one did.