I do not believe a 2 seat sports car would take away significant sales from the Mustang. The Mustang just appeals to a different part of the market. The Mustang has a greater appeal to more people than a 2 seat sports car.
I think Ford could bring out a real sports car like the size of the original Cobra. Now, that was a real sports car. The Viper, Corvette and other similar cars are a step above a sports car. They are more like a serious performance car with high horsepower and superior handling. I think there is a market niche for a fun to drive sports car. Ford could produce a car for that niche without causing great financial loss.
I think Ford could bring out a real sports car like the size of the original Cobra. Now, that was a real sports car. The Viper, Corvette and other similar cars are a step above a sports car. They are more like a serious performance car with high horsepower and superior handling. I think there is a market niche for a fun to drive sports car. Ford could produce a car for that niche without causing great financial loss.