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Chrysler Pentastar V6 engine begins production – Click above for high-res image gallery

With the ENVI electric vehicle group disbanded, the engineers at Chrysler will need to resort to old-fashioned efficiency improvements to meet upcoming federal CAFE regulations for cleaner vehicles. That's just what the company has in store to show off this week at the Detroit Auto Show with three new powerplants that it says will improve fuel economy by 25 percent by 2014. The three engines on display in Detroit are: