Carina Sightings: 2 Carina AA63s on NCML

I found these two videos on Youtube. In the first two Toyota Carina GT-R AA63 sedans are chasing a Nissan Silvia S15:

While in the second (third of the video set 😉 they get chased by a different Nissan Silvia S15 and a Nissan 180sx:

I have no idea what NCML is, but I suspect that NCML is an abbreviation for one of the circuits in Japan and this event was held on 15th of september 2008. Anyone knows what NCML is??