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"  You might think about hybrids and say, &amp;quot;Those were so 2005.&amp;quot; After all, as promising as hybrids are, many manufacturers are turning to clean diesel as a more promising automotive technology for the future. The next three years will be crucial to the success of clean diesel, as the car companies roll out new diesel products to test the waters. Europeans have long known the benefits of diesel, and it looks like we&amp;#039;re about to catch up.  Volkswagen will have one of the first clean diesels in a mainstream non-luxury automobile on sale by January 2008. But Popular Mechanics has always had good spies, and PM.com contributor Paul Eisenstein has an exclusive video look under the hood of a prototype right now: Click here for special reports and more video test drives of alternative-fuel vehicles at PM.com&amp;#039;s Drive Green Central!  RELATED STORIES \u2022 UPDATE: 2009 VW Jetta TDi Diesel Tops 2008 Prius in Fuel-Economy Marathon!    "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/a1742/4218116/>