The standard features of the Chevrolet Impala LS include a 3.5L V-6 211HP engine, 4-speed automatic transmission, 4-wheel anti-lock brakes, side seat mounted airbags, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, air conditioning, 17" steel wheels, cruise control, driveline traction control, and StabiliTrak stability control.