 Further American triumph followed, with Indianapolis 500 wins in McLaren cars for Mark Donohue in 1972 and Johnny Rutherford in 1974 and 1976.After Bruce McLaren died in a testing accident in 1970, Teddy Mayer took over and led the team to their first Formula One Constructors' Championship in , with Emerson Fittipaldi and James Hunt winning the Drivers' Championship in 1974 and respectively.The year 1974 also marked the start of a long-standing sponsorship by Phillip Morris' Marlboro cigarette brand.