Mazda is moving more upscale with all its models of cars and crossovers, and the 2021 Mazda3 is no different. This compact sedan is one premium car when you hop inside.

Notably, the 2021 Mazda 3 2.5 Turbo Premium Plus sedan is the only version that offers lane-centering assistance to go along the car's adaptive cruise control. Mazda calls this Traffic Jam Assist, and ...