In theory, water-based propulsion systems are a low-cost, safer alternative to conventional engines. Water is easier to ...

The hydrogen combustion engine (H2-ICE) market is forecast to climb from USD 1.7 billion in 2026 to USD 20.8 billion by 2036, ...

The verification campaign ran from October 2024 through September 2025. Engineers examined how hydrogen could be safely integrated into existing gas infrastructure while monitoring issues such ...

Everyone remembers the RX-Vision and ill-fated Furai, but everyone forgets this rotary Mazda concept from the 2000s.

Perfectly tuning the heat range of an engine's spark plugs is something of a dark art to all but the most well versed tuners and the engineering egg heads at automotive OEMs. Getting the spark plug ...

If you were looking to own a classic bike that you’d never see another one of at a bike meet, the Van Veen OCR1000 would be a very good place to start. Built by the Dutch Kreidler importer, Henk van ...

View post: The 2026 Chevrolet Equinox Has Many Trims, but Only One Is the Smart Buy A report from CarNewsChina says Changan, via its Harbin Dongan Auto Engine subsidiary, has completed the first ...

A Mazda RX 7 FD3S powered by a 4 rotor 26B engine revs to an incredible 11000rpm, delivering razor sharp rotary tones and pure high rev sound. No music — only raw rotary engine noise. Missing Kentucky ...

After years of rumors and experimentation behind closed doors, the Mazda rotary engine is officially back. The Vision X-Coupe, a plug-in hybrid concept showcased at the 2025 Japan Mobility Show, has ...

Forbes contributors publish independent expert analyses and insights. Peter Lyon is based in Tokyo and writes about the car industry. At the Japan Mobility Show two years ago, Mazda unveiled a ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...