Took me a while to find it with this crazy link you had posted....but I am assuming you are talking about this:
61 Chevrolet
Check the floor boards for rust.. get under the car....don't get me wrong, the rust can be fixed if there, just be sure how much of a PROJECT car you are getting your self into...
If this is the correct car....it is a 4 door and be sure this is what you WANT and not just SETTLING on..