I hate chrome on trucks, so that's the main reason I went AT4. I do not off road, so that certainly wasn't the reason. I went 6.2L CarbonPro just cause I don't like leaving options on the table. I just came from a Ram with the 12" screen which was awesome compared to the GMC. I only get about 14.5 MPG, which isn't good, but I knew that buying the AT4 with the 6.2L.