My other thoughts were: What a waste of good money and what a pain in the ass that has to be.
And that's not taking into account its intended purpose:
Plug-in hybrid subsidies are a bad deal for taxpayers$303,000,000,000.
Washington Post editorial
Vice President Biden brought tidings on Wednesday of a new Obama administration push to more than triple an existing $2.4 billion tax credit for the manufacture of advanced energy technologies, including batteries for use in plug-in electric hybrid vehicles.
Yet even as Mr. Biden was making his latest visit to Detroit, new data emerged showing that plug-in hybrids, which promise to run for dozens of miles on battery power before needing help from a gas engine, are anything but the wave of the future.
An Energy Department-funded analysis by the National Research Council, a congressionally chartered body, has concluded that plug-in electric hybrid vehicles probably will not produce significant savings in either greenhouse gas emissions or fuel consumption for at least another two decades -- even with massive government subsidies. The key problem is the high cost of batteries. Mr. Biden's new program is designed to address this challenge, but according to the study, "the potential for dramatic reductions appears limited" because lithium-ion batteries "are already being produced in great numbers and are well along their learning curves."
Therefore, plug-in hybrid vehicles will remain extremely expensive -- the gas savings more than canceled out by their sticker price. They'll probably account for only about 13 million of the 300 million vehicles on the road in the United States by 2030. Not until 2047 is it probable that the fuel savings of the entire fleet of plug-in hybrids would balance out the subsidies necessary to make them cost-competitive with conventional vehicles. And the government will have to spend $303 billion to get to that point. [link] [emphasis mine]
Couldn't we just buy every taxpayer an environmentally friendly helicopter?
The world has truly gone mad.