Thing to keep in mind is that people come in here only when there's a problem so that's what you see. I think it
is fair to call it a reasonable car. It was the flagship model made for high-rollers and fat cats and LR designed it to be both luxurious and capable but they also expected it to be well cared for. Trouble now is many are 3rd or 4th hand and have been passed along when an owner could no longer afford to maintain it. People reckon if they bought it for 3 grand they don't want to spend more than a couple of hundred on maintenance. They forget its a 60 grand car and if it costs a few grand a year in maintenance that's neither excessive nor would it bother the target market demographic of bankers, wealthy farmers and royalty one bit. It turns out however that they are cheap to maintain and if you have the time and inclination there is a whole lot that you can do yourself! So once you've spent the initial couple of thousand (and you don't have to do it all at once) to rectify previous owners' bodges and to renew things that have just worn out with age, you'll have yourself a decent motor that you can keep for a few years.
For what its worth let me list the common faults or design flaws for you and for the OP.
The air suspension compressor is under-specced and underpowered. So if there is the slightest leak the compressor is soon overwhelmed and burns out. Next the blend and flap motors in the HEVAC can die and the o'rings at the joints of the coolant in and out pipes to the cabin heat exchanger can harden and leak. Third, the cars don't like low voltage. A weak alternator or dying battery will cause the various ECUs to imagine all manner of phantom problems but most of the time that's what they are, just phantom. Lastly, a couple of problems have appeared over time that LR could not possibly have anticipated. Such as, early P38s were made in an age before WIFI so the remote locking receiver is not sufficiently shielded and a stray WIFI signal can sometimes swamp out the key fob or keep waking up the alarm system and cause battery drain. And the immobiliser works on a rolling code that is saved between the BECM and the ECU on EPROM chips. State of the art at the time perhaps but those chips have a life of X thousand write/read/overwrite cycles and after a while they start to break down. If they fail to save the code identically at both ends then next time you try to start the engine and the codes are checked and don't match, the car thinks its being 'jacked and will refuse to budge. And that's about it! All these problems have long been resolved and all the solutions can be found right here in the forum. The overheating problem is in my view wildly exaggerated and in any case doesn't apply to diesels. The main negative comment about diesels is that they are sluggish. You can adjust your driving style or you can put in an ECU power chip or powerbox. A few people have broken their autoboxes which they blame on the extra power/torque but look closer and you'll find its talked about a lot more often than its actually happened. :blah:
So yes, get yourself a Rangie old boy, don your silk cravat and drop by the RR section in the afternoon for a Pims, won't you!