The fact of the matter is that it takes a very long time for the environmental value of a brand new "green" car to add up. The better thing or more rational thing to do, if you really need a car, is to buy an old small one. But buying old and used things does not make the market happy, which is why it can not offer real solutions to the current climate crisis. Indeed, it's foolish to expect the market to deal with something as big as the melting polar ice caps when it could not even build roads to the suburbs, maintain their infrastructure, or provide cheap energy and loans to their homes without loads of state support. The market is so weak, the profit motive so limited, that it can't not even sustain on its own the risk of a 30-year home loan. The magic wand that made America's middle class is only found in the hand of the government.