Engine Technologies

With Mercedes in advanced talks about adopting BMW's four-cylinder petrol engine in a variety of its future cars, the two companies may soon share more than just a place in German motoring history: engines.

While auto engines shrink, marine outboards are packing on cylinders. A year after introducing "world's first V12 outboard," Mercury followed up with what it called the industry's first V10. Now it's updating the V10 lineup with a new flagship.

Honda’s e-clutch tech is a nifty piece of tech that was first introduced in 2023. While it already comes as standard on the current CBR650R and CB650R models in the US, Honda is set to bring the tech to its entry-level motorcycles. And rightly so.

The name Wärtsilä has a definite glow around it in the motorhead community. That's largely because of the RTA96-C, a 14-cylinder, two-stroke turbo diesel behemoth that our own Mike Hanlon endorsed as one of the Seven Wonders of the World back in 2004.

Variable Valve Timing isn’t a newfound concept in motorcycle engines. The likes of BMW and Yamaha have been using this setup in their motorcycles. Now, Suzuki appears to be working on a similar system, likely to tackle more stringent emission requirements.

Alpha-Otto has a design that aims to eliminate the drawbacks of two-stroke engines. The RevForce engine introduces a single, transformative change to the conventional two-stroke layout that preserves its benefits while removing its major flaws.

Horse Powertrain looks to lend a hand to automakers expanding their hybrid offerings with an axle drive it calls the Future Hybrid Concept. The setup blends battery and fuel power into a single drive unit that transforms a BEV into a flexible hybrid.

Remember the Mjølner, the earth-shaking V12 engine under development by Zenvo? Welp, rip that "under development" tag clean off, as the first unit of the world's most powerful road-going V12 engine has been completed.

QJMotor is not the sort of company to rest on its laurels. The Chinese bikemaker has an arsenal of motorcycles in its ranks – singles, parallel twins, V-twins, V-4s, inline fours – you name it. All that was missing was … a triple.

Yamaha has revealed a hybrid motorcycle engine system it's working on, designed to deliver two acceleration boost modes. It could spell an interesting new direction for the Japanese two-wheeler giant to explore if it comes to pass.

Rob Dahm, notorious rotary-powered car builder, has firmly jumped into the deep end of the pool with his latest project: The world's only 15.7-liter, tri-turbo Y12 rotary engine. If that doesn't make any sense, you're not alone.

He's an eccentric motorcycle and engine building genius who regularly creates mind-bending engineering alchemy and has millions of fans... So why is his extraordinary work so badly undervalued at auction? Someone's getting a bargain today.