In 2021, Autocar picked 50 of our favourite road-going engines, including the Ford small-block V8, Lotus twin-cam and Porsche air-cooled flat-six. In truth, we could have selected twice as many, but we had to draw the line somewhere. Here, we’re looking at the best engines of the past two decades, according to the judges of the annual International Engine of the Year awards. Let’s take a look: