I can add a bit more information based on my discussions with my regional Hymer rep. While the brochures and website shows various options for both the Axion and the V-1, the fact is that what you see on the lot is what you get. You can't order either of them at this time.
My interpretation of that fact is that this is an experiment... to see what the market will buy... or not buy. I think the market for the Axion is very limited... and Camping World will have no other Hymer product according to Jim Hammill... and I wonder if they will even continue to have the V-1 after this current batch are sold.
For instance, I don't believe that you will find any of either of these choices with AGMs... supposedly the base models. All of them have the EcoTreks. I haven't noticed any V-1 with solar... and any purchaser will have to look into getting installed after purchase somewhere.
BTW, I don't believe that this Alde includes the floor heating. Many of the Roadtrekkers that have it have had lots of issues with keeping up the glycol levels. Check this website for info about the system: Alde - USA
You know... it might have been more helpful if you had put all of this information into one thread instead of many threads. It is more helpful when people are doing research.