The RX-8-meets-Miata hybrid sports car concept was unveiled at the Japan Mobility Show, and is slated to run on a rotary-electric drivetrain that will burn biofuels, hydrogen, or LPG. Mazda CEO also confirmed that the vehicle could be made more compact, hinting that we could see it realised as both a four-seater RX-8 replacement and a Miata-like compact roadster.