Hi Teegolf. When I bought the 'll LT I could have purchased an '11 LTZ for about $1000 more, but did not want the 18" rims. I also did not care for the color of the LTZ - it was Black. The dealer also told me the 3.5L V6 would get better mileage than the 3.9L V6. That might be true since the newer 3.9's don't run on 3 cylinders with Active Fuel Management (AFM). GM, in my opinion, made a mistake when they did away with AFM. How many miles did you put on your '08 before trading for the '11?