Yeah looks like Koshimizu (KMS) prepared/built the car specifically for Tsuchiya to run in the N2 battle Pics are from testing session.
Guess more details will be revealed soon in the forthcoming Hot-Version video covering the race from Tsukuba on Sunday 26.2.2012.
Intersting to note Tec-Art's actually built the new 7A based 20V motor for Tsuchiya's "Touge Monster" Trueno...