Mazda's future will indeed include the Wankel rotary engine, according to company chief Takashi Yamanouchi. During the president's keynote speech at the Japanese car company's showing, he said "I'm very attached to the rotary engine. So long as I am president then research and development in this area will continue." You may recall Mazda 'pulling the plug,' so to speak, on the RX-8. The sports car used the Wankel rotary well, however it was a bit dirty and inefficient.