I had a new model Grand Scenic and it took 3 isofix in the middle row. I guess the shorter 5 seater Scenic might too, but not sure. When I went looking at Fords they told me even their big cars has only 2 isofix which I find hard to believe.
You need the shoulder width and a bit more width to get 3 seats in the back so mostly MPVs of some kind.
I have a CMAX at the moment. It has two ISOFIX and a middle seat. They are not quite individual but it is quite useable as it is wider than then Mondeo.