Claim: The 2018 D1 Grand Prix series featured 21 teams with only three non-Japanese drivers.
Evidence: Chinese_Taipei Feng Jen-Chih Thailand Daychapon Toyingcharoen [] Hong_Kong Charles Ng Pacific Racing Team Hirano Tire 広島トヨタ team DROO-P Tanabe SSR Team Fat Five Racing Silky House OTG adidas a-unit G-meister GARAGE わいず 北九州 MSR MMM Chroma Racing Nichiei Racing Moty's West Auto TCP Magic AST Sunoco Origin Labo. Team Kunny'z かいとりちゃん オルビスレーシング D-MAX Seimi Style Drift Dixcel Team RE雨宮 K&N Fun Style Racing Samurai Kanto Team C.M.Feeling Do-Luck Glion Trust Racing TMS Racing Team Glion Trust Racing Used Parts Tadokoro Wisteria Team Julius Team Mori パーツオフ Yuke's Team Orange Navigate KRC K'SPEC SunRISE Racing Team ZSS Racing R Magic H.D.O D1 Racing Team Vertex Digicam Origin Labo. Sunoco