A large four-door sedan with seating for up to six passengers thanks to an optional bench front seat, the 2010 Chevrolet Impala is available in three trims. The LS and LT utilize a 3.5L V6 producing 207 hp, while the LTZ is powered by a 230 hp 3.9L FlexFuel V6 which is optional on the LT. Both engines are mated to a four-speed automatic transmission. The 1LT trim now comes standard with fog lamps. The 2010 Chevrolet Impala standard safety features include side head and body airbags, daytime running lights, and traction control.