This is the entry point for the 2007 Suburban lineup.  The LS 1500 comes with two-wheel drive and the smaller 5.3 liter V-8.  This power plant feeds 320 horsepower and 340 pound-feet of torque to the rear wheels through a four-speed automatic transmission.  Even this base level Suburban comes very well equipped, with standard features like full power accessories, a power driver's seat, dual-zone climate control, a CD/MP3-compatible sound system and a trip computer.