There aren't that many unfortunately. VW Touran/Sharan, Seat Alhambra, Ford S-Max/Galaxy. Some cars that don't have a full size seat in the middle will still work with the right combination of seats, but you'd really have to try it out to check, which is obviously difficult if you don't have the car or the seats!
We're looking at a 5008 (not brand new as the new model doesn't have 3 full sized seats) I was advised in the car seat safety group on Facebook I should easily be able to fit my axkid minikid 2.0, cybex sirona and cybex cloud Z seat in all across the back row, even with 2 needing isofix! So giving that a go x
https://www.facebook.com/share/p/1GmdD2VXno/? Not sure if you have to join the group to see the post but this is a list of cars off a car seat page 🙂