I'd like to see Ford put a big Ecoboost in their gas motorhomes.The new 2nd generation 3.5 is making 375 hp and 470 torque and the first generation 3.5 has an excellent reputation among trailer towers. Ford truck forums have rumors of a 5 liter under development, but Hell.
My 1 liter Fiesta Ecoboost makes 123hp and 148 torque, scaled up to 7 liters that's 861 hp and 1036 torque. Who'd need a diesel?