Mazda’s CEO said the response to the Iconic-SP concept was good enough to restart rotary engine development, too.

It would have been easy to write rotary engines off the speculative books at Mazda — poor milage and questionable long-term reliability made traditional piston engines seem favorable to many.

Mazda built its last rotary engine on Friday, June 22. By final, we mean the line that assembled Renesis engines for Mazda's RX-8 sports car was idled, and there are currently no plans to restart ...