While Mazda was the first to bring rotary power to the mass market, Mercedes-Benz almost gave them a run for their money. At least, we thought that was the pinnacle. Because now rotary specialist ...

The KKM design was quickly adopted and licensed. This engine is the basis of the modern “Wankel” rotary engine. Piston powered engines, chiefly the Otto and Diesel cycle, are current kings of ...

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 ...

Then came a three-rotor, which first appeared in the Eunos Cosmo, before peaking with the massively powerful four-rotor in the 787B Le Mans race car, one of the greatest rotary engines ever ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need ...

In the late 1960s, a Japanese automaker took a bold leap with an unconventional engine that defied traditional design.

Sadly, the only remaining rotary in a vehicle other than a concept car doesn't even power its wheels, being the one-rotor range extender in the Mazda MX-30. These engines certainly have the ...

Thus rotary engines tend to have high specific outputs – the 1-litre engine in the NSU Ro80 produced 114bhp; hugely impressive back at the tail end of the 1960s. As rotary engines are very ...

This development group has the hard task of trying to make the rotary stack up to modern internal combustion engines in terms of emissions and fuel-economy standards. Neither factor were ever ...

The previous one suffered from high temperatures and sealing issues (as the most popular rotary engines, such as a Wankel, also do). The valve system used by the Avadi ICE also restricted output ...

“We have been involved in the creation of the model with a strong resolve to keep the passion for rotary engines burning,” said Kojima. “The history of rotary engine development represents ...