Magnaflow 17024 Chevrolet Diesel Duramax, 4in. System Black Series Kit Exhaust on 2040-parts.com

Coming soon: A bigger, better autoweek.com

First, we want to thank all the readers who have helped make autoweek.com what it is today -- we've worked hard to ensure no nugget of cool car news falls through the cracks, and we've been rewarded by a 100 percent increase in visitors over the past two years. That said, we also know there's a lot about our site design that can be improved. Articles don't "pop" the way they should, the home page is far too busy, and our commenting system is…well, let's just say that anything relying on Facebook deserves a healthy dose of skepticism.

GM says natural-gas Chevrolet Impala on the way

General Motors said it will sell a version of the Chevrolet Impala sedan with the ability to switch between gasoline and natural gas, part of the automaker's plan for taking advantage of a U.S. drilling boom that has made natural gas a more viable fuel for cars. The dual-fuel Impala, to be announced today by CEO Dan Akerson at a conference here, will have one engine and two fuel tanks -- one for gasoline and one for compressed natural gas.

Vehicle dependability surged in 2009, J.D. Power survey finds

In the depths of the Great Recession that threatened their existence, automakers built better vehicles. A lot better. The improvement in dependability of three-year-old 2009 vehicles from the year before was one of the biggest ever measured in the J.D.