You might want to do some more research. The 06 vvti v8 engine is rated one mpg less than the v6 but historically most v8 owners will tell you that this v8 actually does better than the v6 of the same years. I have seen as good as 22 mpg on a hwy tank.
As requested here are some more pix. Other than a few small spots the interior is in good shape!
Other than needing some cleaning the underside is clean and rust free. This runner has always only been in California and now Arizona. So no east coast salt rust problems here.