Picking up on bits and pieces here
The Si4 could use more oomph.... besides being thirstier than a sailor on shore leave (maybe that's just the way I drive

) I can't imagine what more power you want - that's one fine engine in there with a real sense of urgency.
Never had to make the Pure vs Prestige / Dynamic tradeoff (no Pure in SA), that said I'd probably still have gone for the Prestige - the interior is just so awesome (and the leather dash is the reason I chose above Dynamic and two days into having it I'm more convinced about my choice than any time before getting it)
Auto Wiper, Lights etc. Maybe it's no big deal, but I got into my car two days ago, driven it in daytime, night time, rain, sunshine etc. and I have not had the need to touch any stalk of any other than indicating change of lane / turning - to me that's part of owning a Range Rover, everything just happens effortlessly.
Maybe just still so excited about getting the car, but all the bits folks mention they can do without are the bits that make this 1. A Range Rover and 2. An Evoque - if you cut them all out you are left with a really great looking concept car but once inside and driving it it could be any VW/BMW/Volvo/name your brand. Not implying for one minute Pure not a great deal, simply saying a the other bits are great to have.