Thanks @Farqui I wanted some advise from people who are better informed than me. Much appreciated.
The car itself is superb: the seats are very comfortable, it is finished to a very high standard ( our previous car was a 2 year old Merc E class - with Vinyl / Artico seats - so the difference in build quality is immense)
I will post our experience with the car etc separately, but so far it's all good - except for people scratching it !!!