A wildly large and sophisticated engine that was originally built by the Soviet Union in 1970 is called the “Zvezada M503A”. Leave it to a German racing team to use it for an interesting cause: entertainment by way of the tractor pulling giant known as “Dragon Fire”. This large beast has 42 cylinders that displaces 147.1-liters along with the complexity of 168 valves and 126 spark plugs. The result is 10,000hp of redneck fun.