 Complete the following phrase:  In , the M23 was gradually replaced with the M26, the M23s final works outing being Gilles Villeneuves Formula One debut with the team in a one-off appearance at the British Grand Prix. Hunt won on three occasions that year, but the Lauda and Ferrari combination proved too strong, Hunt and McLaren managing just fifth and third in the respective championships. From there, results continued to worsen. Lotus and Mario Andretti took the titles with their 78 and 79 ground-effect cars and neither Hunt nor Masss replacement Patrick Tambay were able to seriously challenge with the nonground-effect M26. Hunt was dropped at the end of 1978 in favour of Lotuss Ronnie Peterson, but when Peterson was killed by a crash at the 