Central Japan’s Gunma Prefecture is home to a handful of Japan’s well known tuning shops. There is one in particular, however unique, whose discipline lies in building Mazda Roadsters; a car that, despite it’s nimbleness on track, hasn’t garnered much popularity in the Japanese Time Attack arena. The tuning shop TCS Usui, nestled at the base of Mt. Akagi (go figure), has been in business tuning, selling and procuring Roadsters and various Suzuki Kei cars for some time now. It wasn’t until the owner built this demo car that TCS became known world-wide.