^^ I'd like to know this as well. I did some searching online of both, it looks to be Amaro Brown because Golden Brown has more dark "rust" in it where as Amaro Brown as a more burnt orange/saddle and lighter overall look to it.
Golden Brown:
Amaro Brown:
Mineral Gray over Golden Brown would be a sweet combo! Can't wait to see individual interior prices! Looks to be a slightly darker E46 M3 Cinnamon, and slightly more "yellow" versus an E9x individual Rust Brown.