Hybrid vehicles save you money on gas, which is good when prices are topping $3 a gallon. But here's another benefit: If you drive a hybrid vehicle to Kimpton's Hotel Marlowe in Cambridge or its Onyx Hotel in Boston, you are eligible for the Green Road Warrior Package.

The package includes deluxe accommodations and $20 off the best available room rate with proof of vehicle registration or rental car contract upon check-in.

The Onyx Hotel received the 2006 Good Earthkeeping Award from the American Hotel & Lodging Association for its energy conservation and efficiency strategies. The Hotel Marlowe received the 2005 Massachusetts Lodging Association's Stars of the Industry Good Earthkeeping Award.

The Green Road Warriors Package is available through September 30, 2006.