The All Japan Grand Touring Car Championship of 1999 is the 6th season of Japan GT premiere racing. The GT500 class of that season was the Pennzoil Nismo GT-R driven by Érik Comas and Satoshi Motoyama and the GT300 class champion was the MOMOCORSE A'PEX MR2 driven by Morio Nitta and Shinichi Takagi.