Mazda secretly built a V6 MX-5, then killed it over one ugly problem

A hidden performance experiment from two decades ago reveals how close Mazda's lightweight icon came to changing forever ...
Autoblog

Inside the 13B-MSP Renesis, Predecessor of the Latest New Mazda Rotary Engine

How the 13B-MSP Renesis evolved from earlier Mazda rotary designs, technical features explained, and common problems and maintenance issues discussed. The 13B-MSP Renesis rotary engine powered the ...