The Chevrolet Sonic replaces the Korean-built Aveo in the lineup. Like many automakers, Chevrolet offers two vehicles in the compact segment. Chevrolet positions the significantly larger and more expensive Cruze as a premium compact leaving room for the Sonic as a value-oriented alternative. In terms of competitive vehicles, the Sonic sedan is larger than the Toyota Yaris, and Ford Fiesta, but smaller than the Nissan Versa. The Sonic shares its powertrains with its larger sibling the Cruze. Buyers can opt for either a 1.8l four-cylinder engine or a turbocharged 1.4l with similar output. Even though the Sonic touts a low starting price, it does so by omitting common equipment like power windows, power mirrors, and cruise control and rear disc brakes. There are competitive vehicles in the class that offer this equipment in similarly priced vehicles.

The Sonic adds the RS package which consists of unique wheels, front/rear fascias and a stiffer suspension.