Newbie with some questions

I believe XFULLFATTIM and others have answered in detail. In terms of my experience essential extras are (and I have a Coupe for 8 months now and love it !):

• Reversing camera/sensors
  Panoramic Roof
  Spare Tyre
  

If you can stretch I'd also choose the Adaptive Dynamic pack, and if I were choosing again, I'd probably add the
powered tailgate option. Of course its all personal in terms of petrol v diesel. but its my first diesel for a long time. and I find it great.