Built for the car for the people, this flat-four engine was all about motorizing the masses ...

Gilbert Smith is an automotive journalist with over five years of specialized research and writing experience. Before joining ...

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, ...

What’s the voodoo behind the horizontally opposed cylinder setup only found in Subarus and Porsches? And what sets them apart ...

The Holden is fitted with a gargantuan 1,172.8cc flat-four engine, representing one of the earliest experiments in high-cylinder motorcycle design. Talk about the sheer audacity of packaging four ...

This 1955 Porsche 356 Pre-A 1500S Speedster with a 70 HP 1.5-liter flat-four, 4-speed manual, and 76,000 miles shown is ...

Many vehicles have enjoyed impressive market longevity over the years. However, the engine under the hood might carry on even longer, powering generations of vehicles, or even models from rival ...