"Governor Deval Patrick said today he is looking at a Hummer tax -- adding higher registration fees for gas-guzzling cars and offering discounts for those that do less harm to the environment. One industry opponent said it would be the first such fee in the nation on the state level.
The suggestion comes as Patrick prepares to unveil a fuller version of his much-awaited transportation plan on Friday. While he would not release details today, Patrick said at a Greater Boston Chamber of Commerce appearance that any gas tax increase would be coupled with a freeze on toll rates.
Environmentalists applauded the registration proposal, saying it would encourage people to buy smaller and more fuel-efficient cars, which are increasingly seen as key to curbing global warming. Similar proposals have been proposed in Massachusetts since at least 2001, but without the prominent backing of a sitting governor."
http://www.boston.com/news/local/breaking_news/2009/02/governor_patric_9.html