Nicolaos Dellis·Porsche 911Porsche VideoPorsche 911 (991)991 GT3VIDEO: Porsche 991 911 GT3: Don’t Sweat The Gearbox They Tell Us Not to Worry. I Worry. Let’s See. The latest generation of GT3, the 991, is here and the manual gearbox has been banished. PDK all the way but has that killed the appeal of this monster?