What brand is more successful in motorsport, Audi or BMW?

In the thrilling world of motorsport, Audi and BMW are two big names that always come to mind. While both have had their share of victories, Audi arguably takes the lead in terms of success. They've dominated endurance racing, notably the 24 Hours of Le Mans, with multiple wins. BMW, on the other hand, has its stronghold in the touring car sector. However, it all boils down to personal preference and what one defines as 'success' in the realm of motorsport.