As evidenced by the growing number of nameplates in America, the US market is not going in one direction. The tastes of automobile consumers is heterogenous, and that is reflected in the wide variety of vehicles people purchase.
consider, however, the companies who have expanded with new brands over the past couple of decades, and those who have lost divisions. Chrysler (who got bought out by a foreign company, no less) lost Plymouth and Eagle in the past decade. GM, of course is bidding farewell to the Olds brand after well over 100 years. meanwhile, Acura and Lexus have only grown, as has Infiniti, and Scion is emerging. funny how the Japanese brands just continue to gain ground if they don't know what this market wants. i don't think they are all encompassing, but they do a really good job at hitting the sweet spot in the marketplace. besides, look at the top selling midsize sedans (very important, very lucrative) and tell me what they are. Toyota and Honda. all i'm saying is that instead of hiding and watching, GM needs to be ahead of the game some time, and once again, they're not.