when my dad ran in the early to mid 60s for the dealership, the "fastest car" on the lot that they would give him ran mid 15s...
he would ran with large magnetic decals on the doors, and a few years ago, there was a reunion day for that track (it was a big deal when it closed). I was able to run the Mirada at the reunion day with the SAME magnetic decals that my dad ran with some 40 years earlier. About a week beforehand, someone called who still works at that dealership my dad and said "can you believe that we found the old race car magnets"? So for the event, the mirada flew the burgunder dodge logos like my dad had long ago.

(except my car was a few seconds faster! )