By adding 4WD, this Tahoe model also now comes equipped with the larger 5.3 liter V-8, which makes 320 horsepower and 340 pound-feet of torque.  The Tahoe's mid-level LT trim is further divided into three tiers: LT-1, LT-2, and LT-3.  More standard features are added as the the numbers go up.  The LT-1 includes everything found on the LS, like dual-zone climate control, full power accessories, and a CD/MP3 audio system, plus steering wheel audio controls, front bucket seats and fog lamps.