Impala LTZ, CLEAN CARFAX!, And ONE OWNER!. ''GM CERTIFIED'' Bumper to bumper warranty for up to 4 years or 48,000 miles from original in service date. Powertrain warranty for up to 5 years or 100,000 miles from original inservice date.172 Point inspection and reconditioning process. 2 years or 30,000 miles of free maintenance. Free loaner car for any service need. Free roadside assistance. . 3 day/150 mile satisifaction guarantee. Free vehicle history report. Substantially redesigned two years before, this Impala LTZ received a cleaner, more sophisticated exterior, a badly needed interior upgrade. On top of leather upholstery, heated seats, 8-speaker Bose MP3/XM audio system with steering-wheel mounted controls, etc, the premium LTZ series came with StabiliTrak stability control, the advanced 233hp 3.9L V6, and even included the same FE3 performance suspension on the SS! J.D. Power and Associates gave the 2008 Impala 4.5 out of 5 Power Circles for Overall Dependability. New Car Test Drive called it ***...very stable on the open road, a nice cruiser...***