I took this photograph at the Ferrari & Maserati Festival of Racing meeting at Donington Park in May 2003 where there was a race for Classic Grand Prix Cars, dating from 1967 to 1977. The car isn't listed in the programme of the event and I can't remember whether it took part in the race or not.
It's a 1977 McLaren M26 as driven by James Hunt for the second half of the 1977 season and in the 1978 season, and has a 2,993cc V8 Ford Cosworth DFV engine. James Hunt finished in fifth place in the World Drivers' Championship in 1977 with his team-mate Jochen Mass in sixth place, and McLaren took third place in the World Constructors' Championship. In 1978 James Hunt finished equal thirteenth with his team-mate Patrick Tambay in the Drivers' Championship, and McLaren were eighth in the Constructors' Championship.