Fast growing? Seems like GM/Ford have already saturated the SUV market, and there's already too many players in the AWD passenger car market. Audi and Subaru traditionally had a lock on this market (after AMC/Eagle left, but AMC never had decent marketing. I wonder what would have happened if the Eagle had a rally program like Audi or Subaru? Would have been fun to watch... but I digress) but now everyone and their brother is offering at least one AWD sedan or wagon.
GM and Ford both need to come up with a product that is not just "as good as" but markedly BETTER than the existing products in a given class and price point if they want to get any market penetration. There's too many people out there that have a negative impression of GM/Ford and their products, "all things being equal" they will choose another brand based on past experience or reputation.
nate