Ooooops!
You're totally right, Mike. I took this picture on the internet in didn't check in my Bellu book. This is the 1956 version, with a 904 cc engine.
I would feel bad if I took back pnegyesi's point (why don't you guys choose logins that can be pronounced in most languages...), because he's only half wrong. This is still a Ferry, still based on a 4CV. But I guess you deserve one yourself for correcting me.
Here is a picture of the Le Mans car, very different indeed.