When I saw the ad, the owners advertised a grullo paint. But to me he looks more like a smoky/dark bay?? As far as I'm aware grullo is a little less "brown" than what he is.
What do you guys think?
His 2-year-old pictures:

Today, August 31:


Also, you can see on the bridge of his nose where a halter rubbed him and indented his face a little... the owners kept a halter on him constantly because he's a hard catch. I was quick to swipe it off of him as soon as he was unloaded into his new home!