3.5L V6 SFI FlexFuel and 4-Speed Automatic with Overdrive. My! My! My! What a deal! You win! When was the last time you smiled as you turned the ignition key? Feel it again with this handsome-looking and fun 2011 Chevrolet Impala. Not only will it save you money at the pump with its extremely good gas mileage, but will still excite your senses with plenty of zip.