Cobalt offers sedans and coupes in LS, LT, and sporty SS models. Sedans are also available in LTZ trim, coupes in SS Supercharged guise. All have a 4-cyl engine. The SS Supercharged has 205 hp, SS models have 173 hp, other Cobalts have 148 hp. The LTZ comes only with a 4-speed automatic transmission, the SS Supercharged only with a 5-speed manual. Other models are available with either transmission. Traction control is available with the automatic. ABS is optional for LS and LT models, standard otherwise. SS and SS Supercharged include rear disc brakes, sport suspension, and specific styling cues. Front side airbags and curtain side airbags are optional on all Cobalts. A 60/40 split folding rear seat is standard. OnStar assistance is optional. Pontiac sells a retrimmed version of the Cobalt coupe called G5.