I hate to say it but my worst rental car was a red Ford Contour 4 door. I rented one for a day in florida to get from the airport to the cruise line port. Pretty sure it was a 4 banger. God i hope it was a 4 banger, if not then its really sad. That thing had no nuts and on the highway i thought it was gonna blow up when i hit 65mph. It was about 5 years ago, and i told my fiance that i would never,, ever buy a ford contour. Well, i know own a T-red svt