[kach22i]

Next-gen 911 GT3 secrets revealed! Race car aero and more variants
By Andy Enright, 20 Aug 2020 News
https://www.whichcar.com.au/news/2021-porsche-911-gt3-secrets-revealed

If you’re the sort of person who has been poring over the photographs shot through the fence at Brunnchen corner on the Nurburgring, you might well be aware that Porsche has been experimenting with a number of divergent aerodynamic packages for the 992 GT3...................

By fitting a swan-neck rear wing, they were able to claw back 16 percent of what was looking like a 34 percent loss of downforce through downsizing the wing.

In other words, Porsche may well realise a downforce benefit of somewhere in the region of 16 percent by fitting the swan-neck.