According to the Insurance Institute for Highway Safety (IIHS), the Mazda6 offers 'good' protection for frontal and side impacts but just 'marginal' for rear impacts. Furthermore, in the new IIHS roof strength category, the 6 scored just 'acceptable.' The one concerning part of the IIHS results is their contention that "forces on the right tibia indicate that injuries to the lower leg would be possible." In the former federal tests (new ones have been introduced for 2011, and the Mazda6 still hasn't been tested), it received top five-star scores across the board.
Front side airbags, side-curtain bags, anti-lock brakes, traction control, and dynamic stability control are all standard, as they are among most mid-size sedans. Mazda's blind-spot monitoring system is available too.
Outward visibility is also surprisingly good, despite the wide rear pillar and rather high rear deck, thanks to the rather high seating position and clear sightlines.