The 2013 Dodge Dart will import its fuel economy technology from Italy, thanks to Fiat's MultiAir technology. MultiAir takes "variable valve" technology to the extreme. The system can change, moment by moment, how long the engine's intake valves stay open and how wide. It can even do a variety of crazy valve-timing tricks like opening and closing a valve multiple times during a single stroke of the cylinder. Those kinds of gymnastics translate to ultra-precise control over how the engine takes in air and burns fuel, maximizing efficiency at every moment.
The Dart will be available with a range or turbocharged and non-turbocharged four-cylinder engines. Official fuel economy numbers aren't available yet .
The Dart's biggest contribution to Chrysler Group's corporate fuel economy: It will be much better than the carmaker's current compact offering, the Caliber. That will mean more small car sales.
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