Leading the concept lineup is the Spark EV Tech Performance, for which Chevrolet has replaced the standard GM-built engine with an electric motor. The company says the car can deliver 400lb ft of instant torque, and can accelerate to 60mph in 7.5 seconds.
Elsewhere, the Performance Sonic RS concept uses a cold-air induction kit and a high-flow exhaust to produce more power from the 1.4-litre turbcharged engine than the standard car, which produces 136bhp. The engine upgrades are joined by a new track-tuned suspension system alongside performance brakes and calipers. New 18-inch wheels are fitted, which Chevrolet says gives the Sonic RS a more aggressive stance, while there's also an upgraded interior.
Another concept based on the Sonic is the Ricky Carmichael special edition. Celebrating the X-games champion and Nascar racer, highlights on the modified Sonic include a tuned 1.4-litre engine with cold-air induction, a lowered ride height, performance brakes and calipers and a new wheel and tyre package. The exterior is painted sating black with custom graphics, and also include a new rear spoiler and grille. Again, the interior features bespoke elements such as an aluminium pedal kit and leather trim.
Other concepts include a new Urban Cool Impala, featuring new 20-inch wheel designs, grille, and LED headlights - plus an upgraded Malibu with new exhaust and induction systems alongside new exterior trim.
Chevrolet will also be showing off its personalisation options with a Personalisation Sonic concept, which will be altered throughout the SEMA show. There'll also be a special version of the Cruze modified by tuner 3dCarbon.