This looks like the new RX-8 to me and it will probably have the 16X in it. I think Mazda is coming out with a smaller RX-9 (Miata sized) with a 13B.
http://www.autoblog.com/2010/08/30/mazda-shinari-concept-debuts-new-face-of-the-brand-in-style/
http://www.autoblog.com/2010/08/30/mazda-shinari-concept-debuts-new-face-of-the-brand-in-style/
