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, ...

In Porsche’s long and storied history, few mechanical creations have reached the mythical status of the four-cam flat-four engine. Born in the crucible of motorsport in the early 1950s, it was a ...

The 914/4, as the original is technically called, was introduced with a workmanlike Volkswagen (not Porsche) flat-four engine, and it was popular, too, with more than 115,600 examples produced from ...