Just put 6000 miles on our 07 2500HD crew cab with the Duramax diesel. We replaced our 2004 Silverado 1500 for towing our toy hauler, which is 10,000+ lbs when loaded with bikes. It tows with ease, very comfortable even up steep grades. Handeling is good, corners well too. The cabin is also much nicer, leather on seats is thicker than on our 04 truck. Overall interior fit and finish just as nice as any import. The trailering mirrors are great, much bigger than previous and with smaller miror on bottom. I can now actually see cars in blind spots. Overall we are very happy with our upgrade to the 2500 HD with Duramax diesel, just a great truck.
Black interior, new for Silverado, hides the interior wear and tear of being a truck pretty well. Trailering mirrors. Quite cabin, even with diesel much quieter than 07 gas truck. Radio memory channels that you can mix AM, FM & XM. Much less plastic on exterior, so easier to wax. Split back seat.
Put a steel bumper all the way across on front, rather than plastic parts on ends. Tighter turning radius. Standard step on LTZ.