Yes, the BMW M3 is a great car for driving on motorways. It has a powerful engine, excellent handling, and a comfortable ride, which makes it a great choice for long-distance driving. The car's aerodynamics also help it to perform well at high speeds, making it a stable and enjoyable car to drive on the motorway. In addition, the BMW M3 is equipped with a range of features that make it well-suited to motorway driving. Depending on spec, these include advanced driver assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking.