Tires for a 66 Dodge Dart 270 Convertible
They have 185 R 13 tires at our local wal-mart.
...and they are $25 cheaper than the 185/13 trailer tires!!!
Update- wal-mart seems to have changed their tire search engine, and it now returns no results.
I was there last week and saw them. I even measured them against the trailer tires, as I need a tire for my trailer, and can't believe that 13" trailer tires cost more than 15" car tires.