DETROIT (AP) — General Motors is about to make a sporty version of its Chevrolet Sonic subcompact car.

The Sonic RS will start at just under $21,000. It has the same engine as the regular Sonic — a turbocharged 1.4-liter, 138 horsepower four-cylinder. But it gets different gearing for its six-speed manual and automatic transmissions so it has a sportier feel.

The RS also comes with four-wheel disc brakes for faster stopping. And its suspension is tuned so it sits lower to the ground and is more stable.

GM also is giving the RS a new front grille and fascia, and a rear spoiler.

The Sonic is the top-selling subcompact in the U.S. so far this year. Production of the RS starts in October at a factory in Orion Township, Michigan.