While the vast majority of engines have used the same piston and cylinder design for decades, there have been exceptions like the Commer Knocker.

If you are a motorhead, an unusual engine will immediately get your attention. Most vehicles today have either an inline or V-shaped configuration, so anything peculiar will immediately stick out. If ...

The Commer TS3 engine, built for Commer trucks from the '50s into the late '60s, didn't conform to design conventions of the time. Where most engines follow familiar blueprints with one piston per ...

Charlen holds a BA Languages & Culture degree and has over a decade of experience in automotive journalism. His work experience includes stints at CAR Mag and News24 Motoring. Charlen didn't grow up ...