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

The official site for VW cars, including vehicle information, pricing, and model comparisons. Find your closest VW dealers, schedule a test drive, even get a quote.

The leading resource on the value of clean diesel engines, fuels, equipment and emissions control technology.

This is not your grandfather

Popular Mechanics is a service magazine covering a variety of information on home improvement, automotive needs, electronics, computers, telecommunications, outdoors, fitness and science and technology. Popular Mechanics also features product evaluat...

Online source for the latest business and financial news and analysis. Covering personal finance, lifestyle, technology and stock markets. Providing business analysis, advice, commentary, tools and investing tips from Forbes and affiliated publicatio...

Breaking News and Opinion

Mother Earth News - The Original Guide to Living Wisely

The official site for Audi luxury cars, vehicle information, pricing, special offers, links to Audi dealers, Audi accessories, and used Audi vehicles

Clean Diesel Technologies is a cleantech company that develops, designs, markets and licenses sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road engine applications.

News, research and opinion on alternative fuels and hybrid cars, as well as the issues impacting them. New and emerging technologies shaping the future of alternative fuels, laws and regulations impacting green fuel progress, hybrid car reviews and c...