We need to replace our old Discovery (terminal MOT failure). Looking at Land Rover's spec's, both diesels are capable of pulling 2000Kg, however my wife feels that even occasionally pulling such a load would be likely to damage the Freelander, but not a Discovery. The higher capital cost of the Discovery over the Freelander is a great incentive to buy the smaller vehicle, and the lower per mile costs equally so, unless it is going to prematurely age the Freelander.
Alternatively I could buy an oldish 100k Grand Cherokee and just keep it for towing and the cross country work associated with our country pursuits.