I found this short video of an AE86 doing the YZ circuit last week:

The AE86 is heavily modified and got its dash replaced with a light weight thing. The gauge cluster and engine sound is recognizable and the car almost literally rips up this small circuit!

The YZ circuit was opened back in 1996 to for fill the need for a small circuit. The smaller east course was only opened august 2008, so this is a relatively new course. This course is also used for the MSC round 5 and they even have an AE86 drift king event with Hibino Tetsuya!