The 24 Hours Nürburgring (ADAC 24h Rennen Nürburgring) is a 24-hour endurance event held on the Nürburgring Combined – Gesamtstrecke 24h in Nürburg, Rhineland-Palatinate, Germany. It also utilizes part of the GP-Strecke course to form a total lap length of 16.1 miles (25.9 km).