2012 Chevrolet Impala | 50th Anniversary Edition, Eco, LS, LT, LTZ, Police, Premier, SS | 4 Cyl 2.4 L ELECTRIC/GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.6 L BI-FUEL, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 5.3 L GAS