The rotary engine has been absent on the frontline for quite some time, and it's on the way back. But not with Mazda.
We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...
The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...
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