Circuit de Monaco downhill again to a double right-hander called "Portier," named after region of Monaco, before heading into the famous tunnel, a unique feature of a Formula One circuit. (Until 2009 only one other circuit, Detroit in 1982–88, featured a tunnel, but the F1 series now includes racing at the Yas Marina Circuit in Abu Dhabi, which presents a shorter tunnel at the exit of the pit lane.) As well as the change of light making visibility poor, a car can lose 20–30% of its downforce due to the unique aerodynamic properties of the tunnel. The tunnel also presents a unique problem
Circuit de Charade Charade". Also in 1959, Ivor Bueb winner of the 1955 24 Hours of Le Mans, died following a crash at the Charade Circuit. The death would mark the only driver fatality at the circuit. The only motorcyclist fatality occurred when Marcelin Herranz was killed on June 1, 1963 during the 250cc race of the French motorcycle Grand Prix. The 1964 Trophées d'Auvergne Formula 2 race podium was a sign of things to come: Denny Hulme, Jackie Stewart and Jochen Rindt showed their skill before the circuit hosted its first Formula 1 race when Jim Clark won the 1965 French Grand