Most cars on the road today use an inline engine. You'll find them in everything from economy hatchbacks to performance models. In fact, the inline six engine has been making a comeback in recent ...

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 ...

Discover why Porsche's 4.0-liter naturally aspirated flat-six is the biggest displacement six-cylinder engine in modern sports cars.

Although Subaru didn't invent flat engines, and isn't the only automaker still using them, those motors have become a defining characteristic of the brand. (The same can be said for all-wheel drive, ...

Explore 9 legendary naturally aspirated flat-six engines from Porsche 964 Carrera to Tuthill 911K that defined pure automotive engineering.

Car companies used to have an obsession with the number 12, especially in Formula 1. The siren song of a duodecimal engine has ensnared many an automaker, resulting in shrieking double sixes with ...

Subaru is generally known for a lot of things. Almost all of its cars come with all-wheel drive as standard, something virtually no other mainstream car company does. The brand is also known for its ...

Built from a classic Porsche crankcase, Singer’s latest flat-six blends vintage soul with cutting-edge performance.

Add Yahoo as a preferred source to see more of our stories on Google. Since 1963, an air-cooled (later water-cooled) six-cylinder boxer engine has been used in a car so iconic that both its engine ...

Hot rodders, moonshiners, and NASCAR owe a tremendous debt to this powerplant. Named for its distinctive flat cylinder head design, the flathead V8 went into production in 1932. It stayed on the ...

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.