So? You are saying that because it's larger and more powerful, it must be the better car? While some people might in fact need the extra space...I don't, I will be perfectly happy with the Civic Hybrid instead of the Fusion Hybrid. I know the Fusion looks better, but if I wanted great MPG, the Civic would be my choice.
If I was one of the people whose main goal in life is to save the planet, I wouldn't care about the power and rightly so - 110hp is enough for a car the size of a Civic, it might not be very responsive, but I'm sure it will cruise along nicely at 70-75mph.