Camry and Accord only sell about 20% V6 models, or around 80K Camrys and 70K Accords. Fusion sells 40% V6 models and Milan is 60% which combined should be about 80K.
240 hp with BETTER fuel economy than the Camcord V6s would be fine.
Nobody buys a Camcord over a Fulan because of a few extra HP. When camry upped their V6 to 268 hp did sales increase? No. Will sales of the 2008 Accord V6 go up because of the extra 28 hp? No. People decide whether they want a Camcord or something else, then they decide whether they want the I4 or the V6.
AWD OTOH would sway someone to a Fulan over a Camcord.