GM priced the F-body out of a market. The kids are buying ricers now and imagining performance because they can't afford the real thing.
You have two choices: An SUV or a 4 cylinder, front-wheel drive minicar. You might get your minicar with a V6, but it has to be automatic.
However, the blame isn't all on the automakers. The EPA is driving a stake through the car business with absurd mileage requirements.
You used to buy a new car to get exactly what you wanted. Now the new cars are all alike. Everybody drives the same thing, so why not save some money and get your cookie-cutter used?
Just to add fuel to the design fire: Who actually likes the melted marshmello look of th lincoln towncar?
The big problem for the loss of "viril" design is the feminizing of the car buyer. Some idiot said women have the final say and so everything was redesigned for women. Some points good but it has gone too far. (like the infimous pink woman's car with the parasol holder) Look at the car commercials. Men are insulted, women are brilliant consumers. Car commercials that are directed to men are simplistic grunts. (b/w, no details) Truck commercials are a different animal. They are all grunt. (the hummer commercial tells women its a new way to intimidate men. (girly men))
GM needs to remember. Power sells. SUV is percieved power so it sells. The Minivan became an icon for weakness, so sales dropped. (There was a commercial of men in a gym and the man with the brown minivan with the lights on was embarrased and did not want to admit to owning the minivan)