A Spanish Norman is produced in the first instance by crossing a Percheron mare to an Andalusian stallion. Very popular in the states now but new to the UK.
Yes he will grey out, the horses in my sig, the first is his sire then Samara two year old S/N then her brother yearling S/N and lastly Samara as a foal with her Dam.
Spanish Normans look lovely! I have a Spanish Norman, well he is half andalusian and he's called Norman - so does that count?!
The other half is TBx New Forest, and he was an odd bay colour to start with, and is now a weird grey dun who goes a slightly brown grey dun in the summer.