The Chevrolet Impala has always been a top seller and is currently the third best selling car in the U.S. With an almost complete redesign for 2006, the Impala should continue to find droves of buyers – and not all of them rental car agencies. Sold in LS, LT, LTZ, and SS trim levels, the 2006 Chevy Impala starts with a 3.5-liter V6 making 211 horsepower and 220 lb.-ft. of torque. Optional on LT and standard on LTZ is a 3.9-liter V6 producing 240 horsepower and 242 lb.-ft. of torque. The new 5.3-liter V8 is reserved for the SS model, making just over 300 horsepower and featuring Displacement on Demand technology to save fuel during highway cruising. All engines are connected to a four-speed automatic transmission.