Answer
The model of car that Andy Lally drives for Magnus Racing is the Audi R8. It is a high-performance sports car that has been produced by Audi since 2006. The R8 is known for its sleek design, powerful engine, and excellent handling. It has been used in various racing competitions around the world, including the American Le Mans Series, the Blancpain Endurance Series, and the World Endurance Championship.