Among the low-end full-size offerings, Plymouth took the severest beating during the Seventies. Just look how its market share dropped between 1973 and 1977:
1973: 12,26%
1974: 9,58%
1975: 8,64%
1976: 3,46%
1977: 3,19%
(For this comparison, the total market consists, besides (Gran) Fury...