In 1969, Ford began research predicting the emergence of the luxury compact segment, driven by gasoline prices. In 1970, Ford began design work on a prototype vehicle, later becoming the production Granada. Ford benchmarked the Mercedes-Benz 280 (W114), using it as a basis for styling and dimensions. This makes sense, the Mercedes Benz 280 was an amazing car why not try to repicate it's size and comfort. While not intended as a direct competitor for European luxury sedans, Ford intended for the Granada to be sold to buyers downsizing from full-size car while wanting to retain the same comfort and features.
The Granda was based on the same Falcon platform the Mustang was built on and replaced the Maverick.
It actually sold quite well.
Sales by year:
1975 302,658
1976 548,784
1977 390,579
1978 249,786