You know it when you hear it: the grumbly, all-too-unmistakable sound of an approaching Subaru and its characteristic flat-four-cylinder engine. Since the mid-1960s, the boxer engine has been a ...

How boxer engines work, why they’re not just “flat” engines, and a 120-year evolution traced from the 1899 Benz to the latest Porsche and Subaru boxers. Boxer engines feature flat, opposing pistons ...

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 ...

We explain why Subaru’s boxer engine layout is especially well-suited for off-roading, from stability to traction advantages. Subaru continues using boxer engines for low center of gravity and ...

Subaru's understated flat-four boasts quite an impressive reliability streak.

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 ...

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.