Thank for all the information guys, really appreciated.
I spoke with a VW dealer this morning, and he has suggested (obviously!) that I buy a brand new car.
I plan on leasing the car for three years on a PCP scheme, with final balloon. The numbers look very close, as VW offer a higher contribution on the deposit and a lower APR on new cars. This really surprised me! Had no idea I was that close to a brand new car, am I missing something?
I plan on returning the car after 36 months anyway so my Total Cost of Ownership is lower than the overall total price.
Apparently, the new car will have as "standard" most of the items already present on this '14 plate car. Sat Nav, Heated Seats, Keyless etc, all come as standard on the newer GTD's. I did not know this - is it true? Excluding the leather, Santiago's, and rear camera (I think), everything else is equipped on a new order.
So now do I go for a brand new one, or stick with the 14 plate?