McLaren has launched an investigation with engine supplier Mercedes to investigate why both of its cars suffered terminal electrical faults that ruled them out of the Chinese Grand Prix on Sunday, as Formula 1 champion Lando Norris said the team must rule out a repeat.Norris was stuck waiting in his car in McLaren’s garage before time ran out for him to join the grid, and teammate Oscar Piastri had to be withdrawn from the grid minutes before the start with what McLaren termed separate electrical problems with its Mercedes-supplied power unit.It was the first time in Norris’ eight-season F1 ca