The earth-rotating, 740+ HP GT500 is under development.  Code-named by Ford as ‘King Kong’, this monster will boast a twin-turbocharged 5.0 ‘Coyote’ based powerplant.

Today, fresh video has emerged of Ford testing the 2017 Shelby GT500, and this ‘mule’ is disguised as a 2016 Shelby GT350 prototype.

It’s obvious by the exhaust tone in the video above that this is not the upcoming GT350’s Flat-Plane-Crank 5.2L V8 – and what better way to disguise the bigger, badder GT500 than to cloak it as a GT350 prototype?

It’s no secret that Ford has been driving completely undisguised GT350 prototypes around the Detroit area in recent months (proof below), so Ford has no reason to continue to camouflage the GT350 at this point.

As we reported earlier, Ford was recently caught testing GT500 ‘test mules’ at a local dragstrip.  Rumors were swirling at the time that those mules may have run as fast as 10.96 @ 126 MPH, and ran those times consistently.

Ford is breathing life into a Hellcat-slamming, earth-rotating monster of a Mustang, and we will update you as we receive more intel on this upcoming Shelby GT500.