Hey let’s not bring Fiestas into it! I’m keeping mine. A Bronco and a fiesta ST seems like a good combo to me.For me it wouldn't be about being as green as possible, but trying to go further in between gas stops if this becomes my only vehicle. But with all the arm-chair engineers and mechanics (no offense cause some have actually given some great info) in these threads I just keep getting more confused. "These engines suck!" "These engines are great!" "The 10 speed sucks!" "The 10 speed is awesome!" "33s are crap, go 35s" "35s are crap go with 33s" "both suck go with 37s." Feel like I'm going in circles being on here haha. You guys may end up having me buy a Fiesta by accident .