What you're looking at is a 1000HP Dodge Challenger Hellcat with what appears to be a stock body.
It's been modified to push out a whopping 1000hp from the original 707 ponies. 871 hp is delivered to the rear wheels and it was a 850 lb-ft torque output.
There's an accompanying video too, listing out the mods that were made to the 2015 challenger Hellcat. It's sporting a E85 setup, supercharger pulley upgrade, catalytic converter delete and an ECU remap.
The aftermarket turned the Challenger into a beast that is no longer street legal thanks to the CAT Delete and the vehicle's reliability has probably been reduced but this does give us an idea of the TrackHawk's potential.