The 2014 Mazda 6 is one of the better picks in this class for safety--although doesn't get ratings that are quite class-leading.
In addition to all the usual airbags, plus stability control, and four-wheel disc brakes with Brake Assist, some Mazda6 models are offered with Blind Sport Monitoring with Rear Cross Traffic Alert—a system that helps spot cross traffic as you're backing out of a parking space, or warn of an adjacent vehicle when changing lanes. There's also Lane Departure Warning, and Forward Obstruction Warning, which detects vehicles ahead and sounds a warning; Smart City Brake Support is also offered—helping prevent collisions due to inattention, at speeds between 4 and 19 mph. Adaptive Front Lighting and High Beam Control are also on offer.
The Mazda6 has earned an impressive five-star overall rating from the federal government, albeit with a four-star frontal rating. And although it's among the better vehicles that the Insurance Institute for Highway Safety has tested, and an IIHS Top Safety Pick+, its 'acceptable' rating in the tougher new small overlap frontal impact test isn't quite up to the standards of a few other top achievers in the class.