When it comes to Mazda's most power-dense engine ever, one Wankel comes to mind; the 13B-REW rotary engine, a mill that saw production for just 10 years. In that time, it had quite a large impact.

The resulting creation is a beastly rotary-powered R5 Turbo, complete with aftermarket turbocharging on top of the Mazda swap. A 13B two-rotor was installed in the middle of this Renault in 2007 ...