The back seat is the same in the sedan & hatchback models – the location of the tether anchors differs, however, with the picture below showing the tethers in the hatchback model and the sedan having the tether anchors on the shelf below the rear windshield.
May borrow innermost lower anchors to install a car seat in 2C – spacing is 15.4 inches. See here for more info – https://thecarseatlady.com/vehicles/latch/center-latch/
