One of life's rules I have always gone with is this, If it is supposed to work out it will.
First, you never saw the car, so it may not have been as nice as you think. Second, you never know what damage was done by the flooding, or what might pop up later because of it. Third, if it was supposed to be yours, you would have got it.
I try to never worry about the ones that get away, just press on for the ones I am supposed to get.
Like others have said, hang in there, you will find the right car. When you do, you will be glad this one got away.