I personally would recommend a nice acrylic for a brand new car. Something along the lines of Klasse High Gloss Sealant Glaze or Menzerna Full Molecular Jacket (FMJ). They will give you outstanding protection for 4-6+ depending on weather condition and how many coats you layer on. They also give an amazing shine to your paint as well as protect.
I would also suggest doing it yourself as well especially on a new car its pretty simple to wax yourself and there won't be much prep work on the paint. (And this is coming from someone who details professionally for a living)
I believe in building up with frequent
waxes when a car is new. I can attest that my cars look great at
six years old and I get good resale which make a difference in the next
car you can get, this is my theory, build it up when new.
I don't care for NXT, i've used it, there are other better products.
I haven't used the acrylics, can't say but otherwise everyone loves
Zaino $. I'm using Mothers new FX polymer now and very happy, and the
FX spray wax for a booster is very nice and easy, I was using
liquid glass, it's good but maybe the mothers is better.