But what type of diesel engine is the smallest ... engines have many advantages over their multi-cylinder counterparts, ...

If you want to look at motorcycles, riding mowers, and scooters, you can even dig up some one- and two-pots that are just about small enough ... were water-cooled and multi-port fuel injected ...

But the smallest engine ever made in a production car is tinier than you could ever imagine, and was made way before you think it was. These are some of the smallest engines ever factory-fitted to ...