Well, it has already been confirmed that the coupe simply have no room to take in that V8, so GM don't have to have to worry about it. As for Lexus, and Cadillac, I know they have set fans of their cars who will NEVER shop other brands. The loyal fans of Lexus, Infinity, and Cadillac, not sure about Buick, are so attached to their favorite brand, and it will be very tough to shift their shopping list away from their favorite brand, especially an up and comming new model from the company who built stuffs that were once considerred Piece of crap. It will take at least another decade in order for Hyundai and Kia to reach where Japanese are now(They are close in quality, but in public conception and preference, they are just not there yet). There are just still too many enemies against Hyundai's and Kia's in terms of preference. Just look at the resale value. Korean cars are among the WORST, and it will not improve right away. That's why the history of their quality is so important. They really screwed up big in the beginning and that is hurting them. No matter how good their cars are now, it will still take them time for EVERYONE to respect them as the quality products. GM, Ford, and Japanese need not worry, at least not yet. That's how I see it.