The 2010 Mazda3's exterior styling builds on its predecessor's athletic proportions by emphasizing design features. One of them is the front grille, but Mazda may have gone a bit too far with it, as the gaping opening in the lower bumper looks like a sinister smile. It's a little much on the front of this car. The rest of the Mazda3 is stylish but much more toned down than the front, with smooth body panels. Adaptive xenon high-intensity-discharge headlights and LED taillights are optional.

Standard steel wheels measure 16 inches in diameter, and 17-inch alloy wheels are available. Other options include a moonroof and a rear spoiler.