Yes, there is a little lever that drops the front passenger seat. If you move it back before dropping it fits under the front glove box bit. It’s not as good as a V70 or the xc90 in many respects – Belgian build, not sweden – rear headrests have to be taken out to fold seats flat ( takes 5 seconds) – but overall qaulity is good.
As for 70mpg, I was really trying for it, proper hyper-miling to see what it could achieve, slip-streaming coaches and such stuff. The journey back was more realiatic with jams and more haste. Still, mid sixties mpg not bad. I get around 38mpg around town.
Ps. It’s a 2007, phase 1, euro 3 so no dpf. Might be relevant.