Pull those Prius tires off that Bighorn and put some truck tires on it, the anemic 3.21s may well go down in milage (since that is what some buy a truck for, snicker...) trying to spin them. Especially if going at highway speeds.
I mean, since you pretend to have a truck, why not just go all the way and get the 6 banger and put an ebay 5.7 emblem on it to pretend there's a hemi under the hood too?
Well, some of us don't need to compensate with oversized tires and prefer the quiet smoother ride and better mileage of the standard size.