This is an excerpt from EERE Network News, a weekly electronic newsletter.
Honda and Toyota Continue to Dominate List of "Greenest" Cars
The American Council for an Energy Efficient Economy (ACEEE) released its annual list of the most fuel-efficient and least-polluting cars and trucks on February 19th, a list that continues to be topped by Honda and Toyota vehicles. The new "ACEEE's Green BookModel Year 2003" still lists the hybrid-electric Honda Insight in first place, followed in order by Honda's natural-gas-powered Civic GX, Toyota's (now discontinued) all-electric RAV4 EV, and the two hybrid-electric sedans, the Toyota Prius and the Honda Civic Hybrid. The top-ranked domestic car, coming in 11th, is the low-emissions version of the Ford Focus. Riding at the bottom of the list are three 12-cylinder sports cars from Ferrari and Lamborghini and a slew of sport utility vehicles: the GMC Yukon, Sierra Denali, and Yukon Denali; the Chevrolet Suburban and Silverado; the Land Rover Range Rover; the Cadillac Escalade; the Lexus LX 470; and the Toyota Land Cruiser. See the ACEEE press release.
Although the Green Book is only available for a fee, a summary of the top-ranked and lowest-ranked vehicles is available for free online.
Missing from the Green Book list are the two fuel-cell-powered cars that are now being tested in California fleets: the Honda FCX and the Toyota FCHV. In mid-February, the U.S. Environmental Protection Agency (EPA) announced that the Honda FCX was the first to be certified as a "U.S. hydrogen fuel cell zero emission vehicle." See the EPA press release.
The EPA established that the Honda FCX achieves 51 miles per kilogram of hydrogen in the city, and 48 miles per kilogram on the highway. In terms of energy, a kilogram of hydrogen is nearly equal to a gallon of gasoline. The price is a bit greater, though: according to the EPA, a kilogram of compressed hydrogen currently costs about five dollars. See the EPA fact sheet (PDF 15 KB). Download Acrobat Reader.