2017 Porsche 911 GT3 Spied on Nurburgring, to Get 911 R 6-Speed Manual as Option

Check out Porsche’s website and, if you manage to go past the 718 Cayman storm, you’ll notice the GT3 flavor is missing from the 911 mix. That’s no coincidence, though, as Zuffenhausen is currently completing the final stages of development for the 991.2 GT3.&lt…