Car help for family of 5.

[User2309]

Sorry if this has been asked loads of times but our Ford SMAX is about to give up on us so we are starting to look for a new car.
We have 3 children, ages 8, 6, 3 currently.
We also like to camp and have quite a large tent.
We have looked at a few but ideally I want a volvo. We have managed to find a volvo xc90 which is 2014 with low miles in our budget however the problem is that we can get a younger car with similar low miles for a similar price if we go for the xc60.
Is the xc60 big enough for a family of 5?
Is the boot size much different been the two?

Thank you in advance!