A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a 60 or 120 degrees each other for an even firing order. Some manufacturers, notably General Motors, have made V6 engines with an angle of 90 degrees for savings in construction costs, because such configuration allows using the same production line as V8 engines. Other included angles have also being used, such as 65 degrees by Ferrari, or 80 degrees by Honda. It is the second most common engine configuration in modern cars after the inline four.