I saw this on G+ and when I read the initial caption, I immediately said to myself, that’s not a GT86…

It is, but in shell only, as it has a 2JZ engine (Toyota Supra). When you start swapping engines, your car is no longer what it once was.

As well, the video was rather boring…it had two minutes of fat that shoudld’ve been trimmed by the author (mostly drag strip posturing/posing). The car ran a low 10-sec quarter-mile, but I expected it to, with a modified 2JZ.