Interesting campaign by Toyota, they’ve been getting a lot of flack for this-
http://www.guardian.co.uk/environment/2009/oct/26/toyota-chamber-climate-bill (and quotes from the president of the Chamber of Commerce near the end…)
There’s been lots of “studies” comparing the CO2 from a Hummer to a Pious, but they all seem to get debunked for cherry picking data for either side of the argument.
Is Toyota guilty of greenwashing? Absolutely. But they are also making major improvements to an industry in a way that no other manufacture has been able to (or tried to) accomplish.