Roger
Prior to buying my new 4x4 I had a top of the range LR Freelader 2 diesel on hire for 4 weeks. I found it drove well and seemed well built, However, In view of the fact that the previous Freelander was one of the most unreliable car's on the road, steer well clear until they have proven themselves reliable. The previous Freelander had good press with testers turning a blind eye to issues because it was a LR.
Take a tip from a vehicle Engineer, I DRIVE THE NEW Honda CRV Diesel, Its completely free from delivery faults, painless to own, I think very cool in black, more roomy, does approximately 8 mpg more than the Freelander I had in real life driving, check out the co reading difference, the Honda is the greenest 4x4 on the market.
If the Honda is too underweight for your Caravan, go for a Toyota Landcruser, all the Nissans including X Trials have Renault Diesels engines with many Turbo problems reported in forums and trade.
Good Luck, everyone has their own opinion.
Alan