Internal combustion engines have largely been eclipsed by advanced propulsion systems such as jet turbines, electric drives ...
The five-cylinder engine is uncommon relative to the ubiquitous four-cylinder, six-cylinder, or eight-cylinder variants. As an odd-number engine, it certainly is in a class of just three such engines.
There's no real reason to do this, but I'm so glad they did.
The nomenclature of engine power can get tricky. Brake horsepower, shaft horsepower, pound-feet (lb-ft), dynamometer ratings, revolutions per minute, engine load, and temperatures all play a part in ...