Mazda rotary engines had a few intermediate steps between the 10A and 13B, including the 12A, a larger version of the 10A that was first produced in 1970. The radius of the rotors remained the ...

Take the Wankel engine, or rotary engine, for example ... To create the 13B from the 12A design, Mazda lengthened the motor and beefed up its rotors, which now measured 3.1 inches in thickness.

And Mazda’s best-known rotary sports car is great fun when you ... links to the most recent Wankel-engined car, the RX-8. The 12A engine is remarkably smooth, spinning with no more vibration ...

Mazda built its last rotary engine on Friday, June 22. By final, we mean the line that assembled Renesis engines for Mazda's RX-8 sports car was idled, and there are currently no plans to restart ...

And that, in turn, means that it is very difficult to turn a profit on vehicles with rotary engines, particularly for a small automaker like Mazda. There is a sliver of hope, though. "We are the ...

On Sept. 14, the automaker unveiled its first rotary engine-mounted passenger car for the Japanese market in 11 years. The vehicle in question is the plug-in Mazda MX-30 Rotary-EV gas-electric ...

the term is much better known as a nickname for the Mazda RX-7 — one of the few cars that used a Wankel, or rotary, engine. If you ever wondered how these worked, why not print a model?