The Chevrolet Sonic is offered in two body styles: a four-door sedan and a sporty five-door. Sonic is offered with an efficient Ecotec 1.4L turbo engine rated at an estimated 138 horsepower (103 kW) – 18 horsepower (14 kW) more than Ford Fiesta – and 148 lb.-ft. of torque (200 Nm), between 1,850 rpm and 4,900 rpm. It is expected to deliver 40 mpg on the highway (EPA estimates pending). A standard Ecotec 1.8L engine is paired with a five-speed manual or six-speed automatic transmission, delivering an estimated at 135 horsepower (101 kW) and 123 lb.-ft. of torque (167 Nm) at 3,800 rpm.

The Chevrolet Sonic Z-Spec accessories will initially include body-color ground effects (with a silver exhaust tip), contrasting mirror caps and roof spoiler, contrasting upper and lower grille surrounds and a body graphics package, along with 16- and 17-inch painted alloy wheels. The ground effects kit features a front fascia extension, rocker panel extensions, rear fascia extension and silver exhaust tip.

Z-Spec also includes color accent packages in “Black Out” or “White Out.” These “Color Out” packages, displayed on vehicles at the New York Auto Show, feature black accents on a Summit White Sonic and Summit White accents on an Inferno Orange Sonic.

Additional accessories will be available for the Sonic, ranging from the fashionable to the functional, such as chrome mirror caps and door handles to cargo nets and trunk trays. Additional graphics packages also will be available in the future.