I have an 05 QC 1500 HEMI,
I don't know how you feel about doing some light moding to a truck but with a K & N CAI, a Flowmaster Exhaust and a Superchip reprogrammer i get 16 mpg on the street and 22 on the freeway. It gets better milage then my fathers 08 1500 QC HEMI with mds. Gas millage stock isn't the best on these things, but man is it powerful. I agree with burning tires and gas!