2009 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
Get the 5.3L with the six-speed automatic. Averaging 20 MPG over first 2,000 miles 85%/15% Hwy/City driving. 20 inch wheels (rims are ugly) make for very smooth ride. Engine is very quiet with good power and shifts are very smooth. Quiet interior is a plus, and the leather seats are comfortable. Plenty of power to pass without sacrificing economy. Use the manual shift overrride function to control downhill speeds. Wife likes the 6-way seats and adjustable pedals with the memory function for seat/mirrors.
Auto 4WD meshed with the 6-speed auto is perfect in rain/snow. Bose stereo is solid and speed-sensitive volume control eliminates need to adjust radio as you speed up/slow down. Tube running boards make easy entry/exit. Back up sensors and windshield wiper sensors ++. Flip up rear seats ++.
High end models should be delivered with spray-in bed protection and mud guards. Larger glove box to hold manuals/documents--save center console space for frequently accessed items.