You're going to have to collect more than just a few people's experience in order to have statistically significant data. Just because some people have imports that last forever and domestics that die after a couple of years doesn't really mean anything. You're going to need a much larger sample population than what you have thus far. You probably would have been better off writing about the difference between OHC and OHV engines. There's much better information available on that topic (and not just people's opinions and experience). Sorry, but the way it is now, your paper sounds kinda :ghey: to me.