Hi,
I just bought my RR after months and months of waiting for what I wanted. Check out as much of the forum as possible, read the latest stuff as it gives you an insight to issues.
As BigJC says, you become blinkered once you have set your heart on one, this happened to me, been waiting so long for a 4.6 HSE, dark blue with cream leather and below 80k miles with service history, so when it did eventually pop up I had already bought it in my head before seeing it.
As mentined in many threads take if for a spin, give it some welly, listen to the gear box, when you stop check for leaks, check the air suspension move it up and down listen to the motors. Check all the electrics particularly the climate system. This was my major failing, checking the cabin, I was so blinkered that once i had paid for the car and was driving home I had made a list of at least 10 faults that I hadnt noticed before. doooh.
The one thing I would advise...... be prepared to spend money on it and spend time reading the manuals and trawling through the forums then getting your hands dirty, if you are not then dont get a Rangie. Looking at some of the services mine has had £1.4k per pop oooh la la, but she runs sweet and has always been a dream car of mine to own and drive so for the moment (all 4 days), its worth every penny now and the future.
I decided to get the 4.6 and not the 2.5 or the 4.0 as its just a weekender car and I wanted the grunt to look down on all those poxy jeeps, and boy does this baby fly, BUT it as petrolholic, already downed £40 of fuel and getting 18-20mpg,
Dont buy a P38 and then moan about running costs or reliability, its all part of the experience.