Petrol heads all those looking to learn more about the workings of engines may be interested in a new 4 Stroke, water-cooled, working model engine kit called the X-Power which has launched via ...

The four-stroke engine has dominated internal combustion for more than a century, but a British engineering firm is ready to topple that technology with what it calls a 150-horsepower "five-stroke" ...

It could feel more sporting; the benefiting Alfas are still heavy First there was the four-stroke petrol engine, devised by Niklaus Otto. That's why the four-stroke system is known as the Otto cycle.