2014 Mazda 3 five-door revealed

Mazda has gained a fair amount of traction with its fuel-efficient Skyactiv technology, which was first fully implemented in production on the CX-5 compact crossover, followed by the 2014 Mazda 6 midsize sedan. However, unlike the CX-5 and 6, the Mazda 3, the company's best-selling vehicle, only enjoyed a mild Skyactiv makeover for the 2012 model year with the 2.0-liter Skyactiv engine and transmissions being made available on the second-generation model. This meant the 3 would have to wait until an all-new generation debuted to enjoy the entire suite of Skyactiv equipment, including the lighter-weight chassis, body and suspension.

Jaguar lines up 4-, 6-cylinder engines

Jaguar hasn't offered a four-cylinder engine since 1948 and no V6 since the small, lackluster X-Type was pulled from the United States four years ago. But in an era of mpg obsession, even this proud British luxury brand is changing. Jaguar will offer four- and six-cylinder engines in two of its three car lines, starting this fall.

Dodge debuts a collector's-edition Mopar Charger

Banking on the success of last year's Mopar version of the Dodge Challenger, the company is now ready to launch the high-performance 2011 Mopar Charger. Chrysler's Hemi V8 powers the four-door sedan, pumping out 370 hp and an upgraded 395 lb-ft of torque. The specially equipped Charger includes the Super Trac Pac option that adds the performance-calibrated engine controller, larger front and rear stabilizer bars, specific 20-inch wheels and upgraded brakes.