Love, love, love our diesel Territory TS. We bought it a few months ago and I'm besotted with it. Tons of room inside. On the open road you can get 1000kms out of the tank, although doing short runs and such we are easily doing 800km which you can't complain about. DH got a towball connected and we have used the trailer to take furniture up to my parents place in the Blue Mountains and we didn't notice drag on the car at all or much difference in economy. My only regret is that we didn't get the AWD,which would probably suit your parents better if they are going to travel (don't know where they plan on going). Oh, and I wish we could have afforded the Titanium....maybe next time!

ps: DS2 loves his "truck" also.