If you search for the disco3forum, there used to be proper drawings to make the bolt up plate to keep the tow bar locked in, plus no bugger can nick them either.I have bought a Disco 3 to replace my freelander 1. After towing from Devon up to Scotland, Wales, and several round Cornwall I decided to upgrade. Caravan is 1600kg so close to the 2000kg freelander1 limit. I was unaware of any limits for the swan neck sold with every Disco 3, and understandably confused how they could be sold if not up to the required strength to last when used according to the supposed ability.
The d3 is a decent car if you look after it, though some are just utter money pits with one cheap owner after the next.