RE Amemiya is a manufacturer featured in Gran Turismo 2 (although the only RE Amemiya vehicle available in this game is listed as a Mazda),Gran Turismo 4, Gran Turismo PSP, Gran Turismo 5 and Gran Turismo 6. It is a tuning company that specializes in tuning & modifying Mazda vehicles, especially the RX-7 and RX-8 (hence the name, RE, which stands for Rotary Engine). It is a popular tuning brand among Mazda RX-7 and RX-8 enthusiasts, and it's also building RX-7s for the GT300 class of JGTC/Super GT.