For 2007, Mazda has upgraded the appearance of its s-model sedan and s-model five-door hatchback with a body-color grille, a redesigned front bumper with square foglights, and a new look for both the 16- and 17-inch, cast-aluminum wheels. Detail changes also improve interior appearance, and leather is now optional for all s-models, both sedan and five-door hatchback. An auxiliary audio input with 12-volt power outlet is now standard for all models, making them iPod-friendly.

Upgrades for 2007 also include some changes to improve the driving personality of the Mazda3. Reinforcements to the body shell improve overall chassis rigidity. The front dampers of the MacPherson strut suspension have been retuned to quicken steering response and reduce understeer, while the dampers of the multi-link rear suspension also have been retuned to match. Anti-lock brakes with electronic brake force distribution and brake assist are standard equipment for all s-models and optional for the i-model sedan. Traction control and stability control are now available for both the s-model sedan and five-door. All models are front-wheel drive.