On 7 April 1968, Clark died in a racing accident at the Hockenheimring in West Germany. During the 4-month gap between the first (which Clark won) and second race of the 1968 Formula One season, drivers would compete in other racing formulas. Clark was originally slated to drive in the BOAC 1000 km sportscar race at Brands Hatch, but instead chose to drive in the Deutschland Trophäe, a Formula Two race, for Lotus at the Hockenheimring, primarily due to contractual obligations with Firestone. Although the race has sometimes been characterised as a "minor race meeting" the entry list was impressive with top-running Matras for the French drivers Jean-Pierre Beltoise and Henri Pescarolo, Tecnos for Carlo Facetti and Clay Regazzoni, Team Brabhams for Derek Bell and Piers Courage, a Ferrari for Chris Amon and McLarens for Graeme Lawrence and Robin Widdows. Team Lotus drivers Graham Hill and Clark were in Gold Leaf Team Lotuses and a young Max Mosley was also in the race, moving up from the Clubman series. The event was run in two heats. On the fifth lap of the first heat, Clark's Lotus 48 veered off the track and crashed into the trees. He suffered a broken neck and skull fracture, and died before reaching the hospital. The cause of the crash was never definitively identified, but investigators concluded it was most likely due to a deflating rear tyre. Clark's death affected the racing community terribly, with fellow Formula One drivers and close friends Graham Hill, Jackie Stewart, Dan Gurney, John Surtees, Chris Amon and Jack Brabham all being personally affected by the tragedy. People came from all over the world to Clark's funeral. Colin Chapman was devastated and publicly stated that he had lost his best friend. The 1968 F1 Drivers' Championship was subsequently won by his Lotus teammate Graham Hill, who pulled the heartbroken team together and held off Jackie Stewart for the crown, which he later dedicated to Clark.