To state the obvious, gas is expensive right now. But there tends to be a strong correlation between how much fun a vehicle is in relation to how much fuel it consumes. For example, a Ram 1500 TRX has hilariously low fuel economy. It’s also one of the most fun machines on four wheels that has yet to exist. Just the same, the upcoming Ford Bronco Raptor promises to do dirty, dastardly things to dusty trails thanks to its long-travel Fox shocks, 37-inch tires, and high-output 3.0L EcoBoost V6 engine. As you can imagine, though, something in the Bronco Raptor formula had to give, and that somethi…