The car was on a clean technology tour sponsored by the Diesel Technology Forum.

Honda expects to bring the clean-diesel car to the U.S. by 2010. It gets 62.8 miles a gallon on the highway, but otherwise looks and feels like a regular Accord. At that mileage level, the car is about as "clean" as a new Toyota Prius. But if you run it on biodiesel, a form of diesel made from vegetable oil or animal fat, it would be even cleaner than a Prius (Priuses get 60 in the city) 4/07. [actually the new EPA sticker shows 48 mpg City/45 mpg Highway]cnet

The passing of the recent energy bill, with fuel efficiency requirements, will push clean diesel into the spotlight, particularly with heavier vehicle applications.

Diesel is an energy-dense fuel compared to gasoline – delivering both more miles per gallon (20-40 percent more) and lower emissions of greenhouse gases (10-20 percent less). Automotive forecasters at JD Power & Associates and the U.S. Department of Energy predict that clean diesel cars could account for 10-15 percent of all new vehicle sales by 2015, up from just over 3 percent today. dieselforum