I'm looking for livable fuel economy, for a 17-year old, with enough balls to still be fun. MY two biggest issues would be parents and insurance. I don't know where the 5.0 would quite fall in that range, but they're bad-ass and have an aftermarket comparable to the sbc. I know cars, hence me fear of the rotary. I need an engine I can rely upon not to need a rebuild regularly. I am a huge fan of American muscle, but fuel and initial cost tend to be worrysome. I appreciate all this feedback.