Thing is, there is no good way to assess the truth in any of this based upon Motor Trend and self-admitted hooligan driving.
One the one hand I agree, but car mags always get less than the EPA estimates (and I always get more...). To me the big flag is the delta between their FE and the EPA estimates, and how they compare in relative terms. In the case of the C-Max vs. the V, all of the car mags who test FE came up with the same conclusion: the delta is much closer w/the Prius V than the C-Max.
While I wouldn't count on a single data point, there's a lot of info out there, from car mags to Fuelly to the fueleconomy.gov submissions. They all point to what Ford has admitted--that it's not close to the original estimates. It's also lame that they'd claim the same FE as the Fusion, as the drag coefficient is significantly higher and it's heavier. They're kinda flying in the face of basic physics on this one, so it just seems really disingenuous on their part.
I'm not a Ford hater. I own 2 right now and I like them both. That said, the V and C-Max are both on my radar screen and this doesn't leave me with a great impression.