I bought the 2007 F-350 DRW to replace my 2006 F250 SRW drive. I needed the extra towing capacity of the 350 after buying a new 5th wheel. Obviously Ford took all their 06 truck components and built a truck; calling it an 07 model. I can't, for the life of me, find any difference between the 06 and 07, with the exception of the stiffer (and I mean stiffer) ride of the dually. The mileage isn't much to brag about with the 6.0 diesel. My meter says I'm getting 12mpg, but probably it's more like 10.5. It took about 20,000 miles on my 06 diesel to get about 16-17 non-tow and 10-11 towing an 8000 pound 5th wheel. I'm not sure I'll be as comfortable with bucket seats in the 07 as I was with the 40/20 split.