new V40 purchase - 3 in back??

[Beavis]

i'm planning a new V40 purchase soon.
it'll be a second car as i run a large estate for major holiday trips etc.
but for short trips and where no luggage is needed i want to replace our Civic for a V40.
ialmost ordered one a few years back before settling on the Golf GTD. This was because i had 2 kids in high back boosters, and the rear flattish bench in the golf was more suited. i now only have one in a high booster, and the other 2 don't need anything.
kids are 13, 11 and 7 and are average-ish size.

i've read that rear seats are too tight for 3 adults. one review said 3 adults only on very short journeys.

just wondering if anyone regulary takes 3 kids in the back?
majority of time it'll be used as a 1-4 person car, but on the occasions we all want to go somewhere and leave my V8 at home, i want to know it'll cope.

we've got an appointment to view and test drive tomorrow, but know it'll be difficult in a short window of time to determine comfort for 3 kids in the back.

cheers.