I'm willing to bet $100 that its fake, you can see that there are no lines from the bumper to fender, where the convert roof hooks to the top of the window frame, the rear spoiler, near the bottom corner of the doors, etc, etc, etc..
BUT, those doors look nice, and having no lines makes it look like a 1 piece body.. sorta cool..

BUT, the blueovalnews stuff is accurate..
AND, the 4.6 is great, but will never have the aftermarket of the 5.0, ever.. I've read on blueovalnews that Ford is pitching the Focus more than the Mustang to tuners, so......
It'll be the 5.0 people that keep the tuners financially alive and able to tune for the 4.6...
Either way, they are both great motors..