While the car still had prospects, development started on a modular air-cooled horizontally opposed engine family with varying cylinder counts. Two-, four-, six-, and ten-cylinder units were built ...

This is a weird engine, with two opposed pistons in one cylinder that come very close to slamming together. It’s a great design for aircraft engines due to it’s lightweight construction.

The Chevrolet Corvairs' flat-6 was a unique engine for General Motors, as it is the only air-cooled horizontally-opposed engine ever made by the company. In 1962, Motor Trend and other publishers ...