The Ateca does not have sliding back seats.
The Tarraco also isn’t just “some” extra space, the entire car is almost half a meter longer, with the boot being 40% bigger (700l to 500l).
This isn’t taking into account the boot “shape”, the Ateca has a huge loading lip and doesn’t actually feel that big, although on paper it’s not supposed to be small.
In that size region, you really don’t have many options. The 5008 and the Tarraco, maybe the Touran, and that’s about it if you don’t want to basically drive a delivery van. The Tiguan Allspace won’t be coming to the scheme for at least a while (especially with the normal Tiguan now being removed), so.. yeah.
We were looking at the Tarraco, but it’s too big for us. We have certain requirements that the car doesn’t meet, for example turning radius due to the hospital that we need to visit often – the multi story there seems to be made for remote control cars. The Tarraco simply wouldn’t get around corners without doing three point turns.