The Tribute is a full time hybrid which can run in EV mode up to 25 mph and has an I4 2.3 liter engine good for 133 HP, complemented by a 93HP electric engine mated to Nickel-Cadmium batteries. The car meets California's strict Advanced Technology Partial Zero Emissions Vehicle requirements by achieving Super Ultra Low Emissions Vehicle II standards. Mileage is 34/30 mpg (hwy/city).
[Edited: The Tribute is only sold in CA]
[Source: SF Chronicle via Leblogauto]