Three Subaru models are the only new cars in America with a turbocharged flat-four boxer — and one still comes with a CD ...

The Volkswagen Beetle showed the world that affordable and reliable transport was accessible. As cars have gotten more expensive, complicated, and larger, the simple Beetle shows that transport in any ...

VW started building air-cooled flat-4 engines in the 1930s, and it didn't stop for over seven decades. But the last one ...

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 ...