Find out what automatic transmission is in your Mustang & check out top mods for each transmission! Switching gears via a manual transmission is not for everyone. That is why the automatic transmission is a popular option in latemodel Mustangs. The automatic transmissions used in the latest model Mustangs are much more sophisticated. In many cases they can even outperform their older siblings when compared stock to stock form. In an age where automatic transmissions can shift just as fast as their manual transmission counterparts and often improve overall performance and reliability, it is understandable to see so many car manufacturers dropping manual transmissions in exchange for automatic transmissions. *Tech article is hyper linked to the picture.