I'm sure there are fine print details on this offer you'd need to be aware of before registering a room, but it's cool to see a hotel continue its environmental stewardship. The Onyx won the National Good EarthKeeping Award from the American Hotel & Lodging Association this year. The Marlowe won a similar state award in 2005. Kimpton has a list of 15 hybrid models that qualify for the discount, which runs through September. Electric, flexible fuel and biodiesel cars do not qualify. Kimpton hotels in New York City and Washington D.C. offer similar promotions.
[Source: Travmedia, thanks to Deidre]