For starters, the document states that the Mustang GT500 will use a 5.2-liter supercharged V8 engine, as long expected. Thanks to Ford Performance’s wizardry, this powertrain will deliver 720 hp and 650 lb-ft of torque while revving through to 7500 rpm. The document doesn’t say what transmission the pony car will use but does confirm that all the grunt will be sent through the rear wheels.
Elsewhere, the leak shows that the car will max out at an impressive 190 mph (305 km/h) and come complete with a carbon fiber driveshaft. These details all sound very promising. Sadly, there’s one massive elephant in the room; weight.
This document asserts that the Mustang GT500 has a curb weight of 4225 lbs (1,916 kg). That’s roughly 440 lbs (200 kg) heavier than the GT350 and almost as much as the porky Dodge Challenger SRT Hellcat.
From Carscoops