Hi, as a long time 1.2 petrol owner allow me to advice you on a few things w/ your car:
1. I may be wrong but I guess the 66 plate is mid 2016. Thats the "old" R-Link unit (I have the same) which is a joke with regards to in-car nav connectivity. The R-Link unit has a built-in sim card that provides extremely slow data connectivity which is also very unreliable. This is improved on the newer generation R-Links but for the older you may want to just use Android Auto (which uses your phone data connectivity).
2. On the 1.2 tce engine keep an eye on the oil levels at all times. I'd say every 600-700 miles pull the stick to check the level and if you notice the level dropping - keep in mind to have a bottle of oil in the trunk especially when going on long trips.
3. There is great room for interior noise reduction improvements - all the cheap plastics and trim covers can be insulated so they don't click and squeak when going over bumps etc. Depending on the type of person you are this may or may not annoy you, but in case it happens to be an issue for you just know its fixable.
Hope this is useful, some of the above also applies for the diesels
Enjoy your Kadjar