Can I expect much depreciation on the new Porsche Macan?

I have a new Porsche Macan diesel on order and have an early delivery slot (late April). Given it's now sold out for this year and no one has even driven it yet, do you think I could keep it for a year...

Extended warranty for Porsche Macan - can you help?

I am in the process of buying a Porsche Macan and have been offered a third year warranty for £800. This seems expensive but it is a new unproven car. Is it good value?