Nürburg, Rhineland-Palatinate, Germany (View on Map)
The Nürburgring Combined layout is a monstrous, 25.378 km (15.769-mile) circuit that marries the modern Grand-Prix-Strecke with the legendary Nordschleife. This configuration is used for the annual ADAC Nürburgring 24 Hours, one of the world's most grueling and prestigious endurance races. The event sees over 150 cars, ranging from professional GT3 machines to near-production touring cars, competing simultaneously on what is arguably the most challenging circuit on the planet. The stark contrast between the modern, wide, and safe GP circuit and the narrow, bumpy, and unforgiving Nordschleife creates an unparalleled test of driver skill, engineering reliability, and team strategy. Navigating traffic and the ever-changing Eifel weather over 24 hours on this combined layout is considered one of the ultimate achievements in motorsport.