By the late 1960s, the "Nordschleife" and many other tracks were becoming increasingly dangerous for the latest generation of F1 cars. In 1967, a chicane was added before the start/finish straight, called "Hohenrain", in order to reduce speeds at the pit lane entry. This made the track longer. Even this change, however, was not enough to keep Stewart from nicknaming it "The Green Hell" () following his victory in the 1968 German Grand Prix amid a driving rainstorm and thick fog. In 1970, after the fatal crash of Piers Courage at Zandvoort, the F1 drivers decided at the French Grand Prix to boycott the Nürburgring unless major changes were made, as they did at Spa the year before. The changes were not possible on short notice, and the German GP was moved to the Hockenheimring, which had already been modified.