Step forward, the Shelby GT500, a leaner, meaner, power-obsessed version of the already crazy, 526bhp GT350R.
The GT500 test mule was spotted near Ford's Dearborn Development Grounds in the state of Michigan, USA.
The mule features more aggressive bodywork, which will help the GT500 cut through the air even better. To ensure the car sticks to the ground better, the GT500 also features a fixed wing at the rear, along with a rather low-lying front splitter.
However, it is what resides under the hood that will leave the GT500's rivals gasping for breath. Autocar reports that the GT500's V8 engine could produce more than 700bhp. Sources say that the power output could be as high as 800bhp, thanks to twin-turbochargers being bolted onto the engine. The proof, the 'TT' sticker on the front windshield.
Whatever, the power output is, the Mustang Shelby GT500 is a muscle car looking to crush its opposition which come in the form a 650bhp Camaro ZL1 from Chevrolet and the Dodge Challenger SRT Hellcat that produces 707bhp.
The test mule sat on Michelin Pilot Sport Cup 2 tyres and sported Brembo brake calipers, along with vented and drilled disc brakes. The tyres and brakes along with the massive power output could mean that the GT500 is set to be more track focused like its GT350R sibling.
Whenever it does land up on the streets, the GT500 is one Mustang, you really don't want to face in a race between the lights.