With a history dating back to 1971, the RX has been a fixture of Mazda performance both here and overseas. Well, almost a fixture as Mazda has taken periodic breaks in production such as the final RX-7 in 2002 or the final RX-8 in 2012. Good news, making its debut at the 2015 Tokyo Motor Show is the RX-Vision Concept. OK, before you get too excited and pop a blood vessel, remember that this is only a concept, wink wink. Speculation aside, the RX-Vision concept carries on the lineage of the RX with its sleek lines and sporty looks. And, of course, no RX would be complete without a variation of the Wankel Rotary engine underhood—in this case, the Skyactiv-R. Take a look here.