Subaru's WRX, Ascent, and Outback are the only new US models with a turbocharged flat-four boxer engine — and the WRX also ...

For over three decades, the EJ20 was the workhorse of Subaru, as the 2.0-liter flat four boxer engine would power models throughout the brand's lineup. However, it's the engine's generations of ...

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, ...