So he should have phrased it: "To my knowledge, it has not been in an accident." thus Squall wouldn't have had the chance to make the OP look like an uneducated ass, but then again, that is Squall's special power.
Mr. OP, did you get a CarFax report on the car before you purchased it? If not, you probably should. Did you buy it from a Dealer or private party?