The 2017-2018 Shelby Mustang GT500 is rumored to have the 5.2L v8 with twin turbos producing over 800hp. Many would like the GT500 to keep the 5.8L V8 but Ford put a ton of work in the 5.2L for the GT350. Most think Ford will be working off the GT350R & putting twin turbos on it. In the video above you see a nice concept of what the 2017-2018 GT500 would look & sound like if many are accurate on the 5.2L V8 turbo charged engine.
We found another 2017-2018 GT500 Mustang video but it supports the supercharged idea. There are so many articles & opinions on what the next generation GT500 will be like, here is another vision of the 2017 GT500 https://youtu.be/d-J2nLx7ME8