The 2008 Mazda 6 is a midsize car available as a four-door sedan and a "five-door" sedan with a hatchback. Both are available in "i" and "s" versions, which denote the four- and six-cylinder engines respectively. The versions are further broken down into Sport (four-door only), Sport Value Edition, Touring and Grand Touring. The Sport comes with 17-inch alloy wheels, full power accessories, air-conditioning, cruise control, a tilt-telescoping steering wheel and a six-speaker stereo with a CD player.

Revised 2008 fuel economy figures for the four-cylinder i model are 21 mpg city and 28 mpg highway with the automatic transmission. The six-cylinder s model rates 18 mpg city and 25 mpg highway with the automatic. The Sport trim's manual transmission has a negligible effect on fuel mileage. All Mazda 6 models come with antilock disc brakes, traction control, front-seat side airbags and full-length side curtain airbags.