I definitely would rather a Contour over a Cavalier...especially since the Contour has power windows and locks...Cavalier has squat. However, this whole CNG thing has my wife in a constant worry state. If it backfires on me...she'll never let it down. We have had the worse luck with used cars...add the CNG unknowns and I am looking at castration. But I am in dire need of HOV lane access here in Phoenix...and the CNG price break will be quite a relief as well. I just need the car to last me 2 years worry free I dont care if it blows up after that (as long as I am not in it).