When INNengine's designs first made headlines in February 2023, I tried to talk to the Spanish company. I never heard back from them, something I saw as a sign not to insist on learning more about ...

Mazda's willingness to leave the Otto cycle behind when designing its engines brought us the rotary-powered RX-7 and RX-8, ...

I love a big diesel engine as much as anybody, but they aren’t always practical. While I’d love to own a V16 two-stroke Detroit or whatever else, there’s no way I could actually use one—I just don’t ...

Step right up, ladies and gentlemen, to our Hall of Internal Combustion Oddities! Hurry, hurry, hurry, and set your eyes on the strangest engines you've ever beheld! Witness BRM's H16, formed from the ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

It's been a long time since the automotive world has bothered with the mixing of oil and gas of the two-stroke combustion cycle — but soon, it may come time to rid ourselves of four-stroke engines, if ...