im 17 and im curently looking for a new vehicle. i was debating about getting a sports car or a truck. i currently own a jeep grand cherokee that gets 12.8mpg and all the sports cars i want (m3, c55 amg, or the audi s4) get the same if not worse gas milage and there nothing but high insurnace and speding tickets. i realy like the hd editions but im wondering whats the difference in the powerstroke diesels and the turbo diesels also how good are these trucks on gas 20-25mpg.