Complex sentence: Ford chose not to sell the European Escort in North America due to slow demand for the Cortina, however the Escort name was introduced to North America in 1980, replacing the Pinto and stop-gap European Fiesta.
Split into simpler sentences: Ford chose not to sell the European Escort in North America due to slow demand for the Cortina. However the Escort name was introduced to North America in 1980, replacing the Pinto and stop-gap European Fiesta.