The plastic cover of a Subaru Boxer engine showing the Subaru constellation logo - Topuria Design/Shutterstock Flat engines are horizontally-opposed piston engines, and this group includes Boxer ...

If you've ever taken a closer look at small planes or seen one being maintained, you might have spotted something interesting under the hood. The engine layout is often wide and flat, and not stacked ...

View post: 2026 Porsche 911 GT3 Touring For Sale, Currently At $277k On BaT, 6-Speed Manual. Boxer engines feature flat, opposing pistons that move in opposite directions for smooth operation. Subaru ...

Erik Sherman is an automotive journalist and motorcycle enthusiast. Although he has served and worked all over the world in different capacities, his passions belong to all things automotive. His love ...

The flat-six delivers balance and handling, but the V6 wins on packaging, cost, and versatility. Here’s why one layout dominates while the other stays rare. The internal combustion engine can be ...

Subaru’s flat-four engines have earned a loyal following for their low center of gravity and all-weather confidence, but they also carry a reputation for being picky about maintenance. Keeping a boxer ...

Matt Nelson is an automotive journalist with nearly a decade of experience in all things cars. He's spent years working at dealerships in sales, finance, and service. He's since traded in his pens and ...

Flat engines are horizontally-opposed piston engines, and this group includes Boxer engines, but not opposed-piston engines like the Cummins 14.3L Advanced Combat Engine (ACE) designed to power tanks.