You need to filter out all the Manuel Mustang GT's from the Automatic filter

No one here can help you. I doubt anyone can make sellers fill out the information accurately.

The dealerships are still doing this annoying crap. If someone is looking for an automatic, why in the world would you put it up as a manual transmission? You have them go to the lot, look at the car, see it and waste time. Luckily a lot have interior pics and you can see which is which, but even after emailing Cargurus about it they won't do anything about it. They said contact the dealers first, when they reply, then leave feedback. Really? That is going to do something about it? Retardation.