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Mazda CX-5 crossover to get a diesel-engine option for 2014

Mazda's CX-5 compact crossover will get a diesel option for the 2014 model year, according to a source familiar with the company's plans. The CX-5 goes on sale in the United States in February with a 2.0-liter gasoline engine. The vehicle will have Mazda's new Skyactiv fuel-saving technologies, which include direct-injection engines, a more efficient transmission and a lightweight frame and chassis.

EVs rev up for Act 2

After years of preproduction buzz, the Chevrolet Volt and Nissan Leaf are generating interest among the people who count most: buyers. Most owners are charging their cars at home without any issues. They brag about cruising past the gas station.

Mercedes-Benz B-Class aerodynamics tested [w/video]

Mercedes-Benz has produced a video testing the aerodynamics of its new B-Class – which it claims is the most aerodynamically efficient car in the world – using a wind tunnel and fluorescent paint. The W245-generation B-Class has the lowest aerodynamic drag in its segment with a Cd of just 0.26, thanks to features such as serrated front wheel arch spoilers, optimized cooling airflow and a Pagoda roof to help airflow over its profile. The car's aero properties were put to the test at the MIRA vehicle test facility in the UK using fluorescent paint in 60mph winds to highlight its flow dynamics, only visible under UV lights.