Dimensions- Is it a mistake here in the dimensions?

Hi
I was reading this magazine called OD, I hoped you guessed it, and I am convincing my dad to buy a Fiesta 1.6S. So, I got this magazine out from my shelf and started reading various specifications of the cars of my budget. I have a slight confusion here. Here it goes, the dimensions given in this magazine are-

CAR HEAD FRONT REAR BOOT SHOULDER
ROOM LEGROOM KNEE ROOM SPACE ROOM
(F/R) (max/min) (max/min)

1.Fiesta 940/925 1215/1040 890/685 430lts 1330
2.SX4 926/990 1060/960 860/830 505lts 1285

Now, my confusion, the Fiesta, by dimensions seems to be more spacious than the SX4. But, visually it always seems that SX4 must be more spacious. And moreover, I keep hearing Fiesta is "a bit cramped" at the rear. Is that true? Which of the two cars is more spacious?