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Official Motor Trend magazine web site features used cars, road tests, new cars, concept cars, auto shows, and much more car buying information and help.

Edmunds car buying guide lists new car prices, used car prices, car comparisons, car buying advice, car ratings, car values, auto leasing.

Resource for news, photos, specs and reviews of fuel efficient cars, hybrids, electric vehicles, diesel, hydrogen, plug-in cars and all high MPG cars.

Car Reviews, Videos, and News. AutoGuide.com has the latest new and used car reviews, prices, specifications and videos. Find Auto Insurance, New Car Loans, and get Dealer Price Quotes.

Eartheasy provides solutions for sustainable living in the form of eco-friendly products, comprehensive guides, and informative articles.

The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world through a combination of independent scientific research and citizen action.

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Get the latest auto and car reviews, articles and stories from automotive experts. Also view our massive car picture galleries and videos at MSN Autos.

Your ultimate online portal to the future. Reporting on what

Car Reviews and headline car news created by AutoWeek Magazine. Updated hourly with news and car pricing information.

The HowStuffWorks Auto Section contains articles about everything from engine workings to classic cars. Learn about cars on HowStuffWorks Auto.

Read hybrid car reviews and compare hybrid models. Buying guides and interactive tools. Read about plug-in hybrids, electric cars, biofuel-powered cars, fuel-efficient small cars, and other auto alternatives for the 21st century.