My 330hp V8 Audi S4 gets 22mpg on average....
TWO SUVs here. Plus tractor, chain saw, gas weed whacker, charcoal grill...
I pushed the Grand Marquis to 31.1 over 485 miles, mostly Interstate and all but the last 40 miles or so in very hilly, even mountainous driving, of course I was drafting 18 wheelers at every opportunity and I DID NOT use cruise control. Cruise control kills your mileage if you are going up and down hills. In everyday driving it does 19 in stop and go driving and 26 to 27 in mixed town and highway driving using the cruise. Of course I don’t have quite 330 horses but I never really feel the need for a lot more power, if I did I would be driving a Mustang or something similiar.