From what you have stated so far it seems that PCP is the only finance package which actively forces you to dump the car at the end of the policy and buy a new car though

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That is absolutely and definitely wrong.
You can if you wish end the deal, walk away and go elsewhere.
Or you can buy the car for the GFV either for cash or on HP or you can arrange a loan (doesn't need to be from the dealer).
Or you can part ex against a new or a secondhand car.
I really don't see how it could be more flexible than that.
As for Rory's point that I support PCP's that is not fair. I have merely tried to correct the many misconceptions about them and show under what conditions they can offer the motorist a good deal.
If Rory cannot see that a discount of nearly 10% off a new E class (more if you haggle), and finance at under 5%, with a guaranteed residual of about 50% of the price you pay, if he cannot see that is a good deal, well, I am amazed. (But then of course he regularly contradicts himself by saying these deals are heavily subsidised!)
And for those pondering a gas guzzler, given the posting on how hard big cars are to sell, I thought some might be interested that there are some risk free ways of owning these attractive beasts without suffering the savage depreciation that some have had.