Debuting at the 2002 Tokyo Auto Salon, the Mazda Cosmo 21 was a concept based on the NB Miata chassis, with the Renesis 13b out of the RX-8. So about as close as we ever got to a factory rotary powered Miata. Personally I find it Too busy for my tastes but I’m kinda happy this exists. But eventually the Miata Coupe made it into limited production, rather than the Cosmo 21.