It's taken a few twists and turns this thread, but interesting all the same isn't it ?
As a little update, I'm now seriously considering whether it's practicable or not to purchase the GTD outright early next year.
I have two school of thoughts rattling around my head.
Thought 1 - early next year for relatively little money (in real terms) - £12k, I can own outright a perfectly maintained and mint GTD, in my own preferred spec (lots of extras and toys), in (IMHO) a great colour with only probably less than 22-25k on the clock (currently at 18k). Run it for about 2 years then see (by 2021) what the MK8 GTi brings to the party and then part-ex the GTD which would then be 5 years old. It seems from what I have read, that the tax on diesels will only change for newly registered cars (not existing cars which will remain at £140 - certainly for the short term). Also Euro6 diesels are also exempt form any currently planned inner city penalties (over it's petrol cousins), and that includes the 2019 London ultra low emission zones. So it seems all I'd have to worry about is the price of diesel going up relative to petrol ?
Thought 2 - Sell the GTD now (or very soon) whilst it's still worth something and buy a petrol car (be it a Golf GTI or even the new Polo GTI). I've seen over the last few months some considerable downwards movement in part ex prices on my car, so one issue with this school of thought is that as per the other recent thread about early PCP termination, I could still be in negative equity (albeit only just) with the car, whereas in December I had about £600 collateral. I could of course run the car to the end of the PCP then just had it back to VW UK after taking delivery of whatever petrol car I decided to order.
i tell you, whatever your persuasion (petrol or diesel), this and previous governments it seems have well and truly shafted diesel owners, and whether they want to keep their diesel car or not (some like me are happy with it's blend of looks, handling, performance and fuel economy), it looks like a lot of people are financially forced down the route of either keeping their old diesels until they literally fall apart (as they will be worth nothing), or spend money they never anticipated to upgrade to Petrol or Hybrid sooner than they had wanted to. Of course a net result of this (as we are already seeing) is rising prices on second hand petrol cars. Great for those who are selling, not so good for those wanting to buy.