According to Autosport web,
Takamitsu Matsui had participated in Japanese Formula 3 test by his own budget.
He had few experience in Formula car driving. (JAF-F4 only)
So he decided to challenge F3 test to learn how to drive quick-cornering car.
He thinks this is must way to step up to GT500.
http://www.as-web.jp/supergt/189657?all