Chrysler Group says its new eight-speed automatic transmission will boost fuel economy and cut emissions of the company’s two full-sized, rear-drive sedans. Hit the jump to read the rest of the story.
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The transmission initially will be available on 2012 Chrysler 300s and Dodge Chargers powered by Chrysler’s 292-hp Pentastar V-6 engine, the automaker said today in a statement. The cars are being assembled and will start arriving in dealerships by Oct. 1, according to Chrysler spokesman Vince Muniga.

Chrysler will charge a $1,000 premium for cars with the new transmission. An entry-level Chrysler 300 with the eight-speed will be priced at $28,995 and the Dodge Charger SE will be priced at $27,320. Both prices include destination. Both cars will be available with a five-speed for $1,000 less.

Estimated highway fuel economy for the two cars will rise 15 percent, to 31 mpg, Chrysler said. Estimated city fuel economy will rise to 19 mpg, a 5 percent increase over 2011 versions of the cars, which came with a five-speed automatic.

Chrysler and Dodge also will offer eight-speed, all-wheel-drive versions of the 300 and the Charger. The cars will be offered with paddle shifters on the V-6 and V-8 models.

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