The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

Good news, everyone! Mazda is not only reassembling a dedicated team of engineers for rotary engine development, as we’ve reported earlier, but today it also announced its intention to expedite ...

The electric motor might carry the hype banner at the moment, but some minds remain convinced that there's plenty of innovation left to be extracted from internal combustion. AIE is one of the rotary ...

You hear endless myths about the Mazda RX-7, from breathless praise of its “magic” to horror stories about blown apex seals.

LiquidPiston is testing a 10-kW generator it's prototyped for the US military, which it claims is just a quarter of the size and weight of the current model the Army uses. That means it'll be far ...

The Wankel rotary engine is known for its troubled life in the mainstream automotive industry, its high power-to-weight ratio, and the intoxicating buzz it makes at full tilt. Popular with die-hard ...

Mazda’s revival of its iconic rotary engine as a battery-replenisher for a version of its electric car provides an alternative to pure EVs and plug-in hybrids but will eventually fall foul of an EU ...