The front-wheel drive Sonic is offered in two body styles; sedan and hatchback. All models come standard with a 138-hp 1.8-liter engine mated to a five-speed manual transmission. There are two available transmissions, a six-speed manual and a six-speed automatic. A 138-hp 1.4-litre engine is also available on the LT and LTZ trims. Standard safety equipment includes stability control, ABS brakes, automatic headlamps, panic brake assist, hill hold control, OnStar and ten airbags. Standard and optional features depending on the trim level include front fog lights, power windows, heated front seats, cruise control, a security system, air conditioning, XM satellite ratio, alloy wheels, remote engine start and Bluetooth. The Sonic is all new and has replaced the Aveo for the 2012 model year.