OK, I'll weigh in here, which is ironic, because I want to point out the weight. If I understand it correctly, the Prime is less than 3450 lbs. The Energi is 3800. It is still built more lightly than the C-Max, and it won't ride as well. They were going for pure MPG, while Ford was using an existing (and popular) model from Europe. To me, these cars ARE apples to oranges.
The weight greatly influences MPG and range as well. But it also negatively influences ride and comfort. You get what you want. I would never compare them for MPG, but I would expect the C-Max to be better in comfort and long range driving.
Still wish the C-Max turned tighter than a tank (which isn't true, if you know tanks - but it SEEMS like it is true).
I'm not convinced on this one either. Of course it comes down to personal opinion, but I definitely don't find the C-Max to handle or ride better than my old Prius. Both are just OK. And if anything the weight of the C-Max makes it feel a bit more boat-like which I think is about how it's turning radius is as well! I just took our full minivan Sienna out into a parking lot the other day and realized that it turns shorter than the C-Max!
I'm even reconsidering the interior which everyone says is better than a Prius as well. I'll give you that they used softer and seemingly nicer materials inside the C-Max, but I find the heavier door/thud is just a different feeling and really just takes a bit more effort. And it seems to take it's toll on the interior as my door handle ever so slightly flexes when I pull the door shut. The Prius never did that with it's harder surfaces.
This one goes for our Sienna as well- I always thought the leather(esque) seats looked nicer and I guess might be easier to clean, but I kinda think I might prefer the cloth... I'm finding that leather stuff doesn't breathe at all during the summer. I keep looking down to confirm I didn't accidentally turn on the seat heaters. Also, I've found that the kids' car seats are leaving what look like may be permanent disfigurement to the material.
Anyway, as far as ride, it comes down to what you want and weight doesn't necessarily mean better or worse. We've had plenty of lightweight well riding vehicles in the past. The fact is that the C-Max is a heavy vehicle. I'd say pretty much at the tops of the weight class...