"Technology innovation is already transforming the automotive market, at a pace that none of us could have predicted just a few years ago…. About 90 current models, representing about one-quarter of all sales, can already meet their 2016 EPA footprint-based GHG emissions targets, assuming fairly straightforward air conditioning improvements, with over half being gasoline and models in almost all vehicle classes. "

- Jeff Alson, Senior Policy Advisor Office of Transportation and Air Quality
U.S. Environmental Protection Agency