2007 Chevrolet Impala LTZ

The LTZ ascends one step above the three LT models by adding the 3.9-liter V6 as standard equipment. This engine generates 233 horsepower and 240 pound-feet of torque, and is equipped with Active Fuel Management technology. Standard features at this level include heated leather seats, an auto-dimming rearview mirror, and a premium Bose sound system. A CD changer and a sunroof are the only options.