Three-cylinder diesel engines have not disappeared from the market, but they now occupy a narrower, more specialized corner of the powertrain world than they did a decade ago. They continue to be ...

Four-cylinder engines are usually associated with efficiency and compact packaging, yet a handful of engineers have stretched the format to astonishing sizes. The five engines below represent some of ...

Four-cylinder engines may be the obvious motor of choice for large-capacity, performance-oriented motorcycles today, but this wasn’t always the case. It was British twins that dominated the world of ...