Sorry to hear you're leaving us PondPaul but now we've now got someone on the board who's gone for the new Crossland, it's going to be interesting to hear how things pan out. I had a loook a while back at some of the Antara vs the Peugeot 5008 stats and noted things like the Antara had a better door opening angle (70 deg vs 64) and head room (71cm vs 68) but the Peugeot had much better legrooom in the front (103cm vs 95.6 for the Antara). The boot width was also much better on the Peugeot (107cm vs 90 for the Antara) and boot height (85.6cm vs 75 for the Antara) although they got rid of a lot of the boxiness of the new Peugeot and it slopes down at the back much more so boot height might not be so good for the Peugeot now.
The other thing would be the DPF or as the French call it the FAP (assuming you went for diesel instead of a 3 cyl petrol). It would be a wet Adblue system which makes for easier regens but brings on another set of problems with gauging pumps and electrics (traditionally a weak point on a lot of French cars).
2015 Antara Exclusiv 2.2 163ps Manual 2WD