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Freightliner Trucks’ 2014 Cascadia Evolution Class 8 truck model is powered by Detroit and features aerodynamic enhancements. The Cascadia Evolution delivers up to an additional 7 percent improvement in fuel economy over an EPA 2010-compliant Cascadia equipped with a first generation aerodynamic package and up to a 5 percent improvement compared to a current model year 2013 Cascadia equipped with the latest aerodynamic upgrades. The optimized aerodynamic features were developed using Daimler Trucks North America’s wind tunnel – the only full-scale, OEM owned and operated wind tunnel for big rigs in North America. In addition, the truck was extensively tested on highways throughout the United States, and underwent almost three million miles in combined reliability and fuel economy testing.