Yes that's correct im looking to change to the nicer tft digital so amazing stuff, thank youSensors aren't on the wheels, they are on the hubs I believe.
Upgrading the speedo . . . I assume you are talking about putting the TFT one in? You must get one from a 2015 car, not a facelift. The main reason for this is the facelift one doesn't have blue & me and you can't set the time and date as on the facelift cars this is done from the stereo. I've just installed one in a convertible and works perfectly. It will pick up the blue & me and you will be able to set the time and date. You will need to adjust the mileage using multiecuscan as long as the mileage on the new one is lower than your car, otherwise you will need specialist kit to do it (which I have). A proxy alignment will then be needed to stop the mileage flashing.

Just now to find one that doesn't cost the earth

With 2015 does it matter if it's older 15 or has to be newer 15 if that makes sense? I'm aware 2016 onwards is an absolute no but guess what I'm looking for is will I be safe sticking to 2015 regardless?
Seen some 2014 but seems iffy on what's the orange one we all seemingly hate or tft?
Sorry for all the q's, much appreciated