An action-packed story of justice, cheese-and-tomato sandwiches and the greatest car ever from bestselling author, Alexander McCall Smith.

When Max finds an old car that has his last name - Champion - on the bonnet, he learns that his grandfather used to make some of the best cars around... and race them! That is, until his ideas book and his favourite car, Arabella, were stolen by greedy rival Mr Grabber. Can Max find a way to get back what Grandfather Gus lost? And will Arabella ever be seen again?

Alexander McCall Smith is the author of more than a hundred books, including more than thirty best-selling books for children.