OPTION PACKAGESENGINE, VORTEC 5.3L V8 SFI FLEXFUEL with Active Fuel Management, capable of running on unleaded or up to 85 ethanol (with gas - 320 hp 238.6 kW @ 5400 rpm, 335 lb-ft of torque 452.2 N-m @ 4000 rpm, with E85 ethanol - 326 hp 243.1 kW @ 5300 rpm, 348 lb-ft of torque 469.8 N-m @ 4400 rpm), iron block (STD), TRANSMISSION, 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode (STD), AUDIO SYSTEM, AM/FM STEREO WITH CD PLAYER AND MP3 PLAYBACK seek-and-scan, digital clock, auto-tone control, Radio Data System (RDS), speed compensated volume, TheftLock, auxiliary input jack, and USB port (STD), Third Row Seat, Rear Air, Running Boards, Satellite Radio, Onboard Communications System Please confirm the accuracy of the included equipment by calling us prior to purchase.