Sedan ISOFIX bars

[C.A.R.]

D: why are the sedan ones different from the normal ones?

If you look at it, the hatchback in either 5-door, 3-door or estate have a folding rear bench and the ISOfix plates are fitted in the boot compartment where the backrest hinges. On a sedan the boot compartment is basically sealed away by the rear bench seat, so the bar has to fix in a different location.