Looking at two S trims ATM
One has leather seats but nothing else no cruise, no volume buttons on steering no parking sensors.

I have seen a few threads on changing part of the steering wheel over for cruise and radio controls but is it easy to fit front and rear parking sensors or any other little mods to bring it up a trim level or two...

Also as no heated seats

We had a S and I put rear parking sensors on it, used one of the cheapo kits off eBay, just power it off the reversing lights, cost about £15.
One of the problems we had with an "S" was that the car had 16" wheels and came with Transit Van tyres. I took it into a couple of tyre places and they said that they couldn't find a suitable off/on road tyre that would fit. One even refused to supply tyres for the vehicle! 3 x FL1 2 manual + 1 auto
5 x FL2 4 manual + 1 auto
Now Discovery Sport P250 MHEV SE

Thanks may just stay away then and go for GS up