When you add in that diesel emits 13% more CO2 per gallon than gasoline, that's not even close, the f250/f350 is emitting at least 75% more CO2 per mile.

A WRX has a combined mpg score of ~23mpg. So even the worst case scenario (a tuner car) and the best average you provide (20mpg) we see that the WRX get takes 4.3 gallons to go 100 miles while the f350 takes 5. The ridiculous tuner car is 15% more efficient than the _unloaded_ f350 with the most efficient drive train.

Thats a pretty big deal.

I'm not sure why you're being downvoted. Diesel pickups tend to get high teens unloaded, depending how they're driven. Mine gets around 20mpg on the highway.

you misspelled 14 https://www.fuelly.com/car/ford/f-350_super_duty?engineconfi...

and 2x worse https://www.fuelly.com/car/subaru/wrx