I have only noted 14, but I am pretty conservative - unless I see an Amerisport badge in the photos or have some other evidence, I do not record a car as an Amerisport. Just because a car has an Amerisport wing, or gills, for example, is not sufficient evidence for me because those can be retrofitted.
Kirk did promise me a few years ago that he would go through his records, which are buried somewhere in his home, but he has not done so yet. He is a very busy guy. I might give him a call by way of friendly reminder.