Did a search, don't see this. FYI - movement speed only applies if your from the same nation. While this seems like a no brain-er since that's how it works in the present, in the present you don't have the ability to buy other nations Rank 10 ever. You can spend your allied notes on these however and they're not a massive sink of notes like the Aketon's are for CP.
Tested with a friend in Ronfaure [S]. I'm allied with allied with Bastok and bought a kingdom livery, ran through the zone with him in no movement + % and we never got more than 5 away from each other due to trees / lag. Ran back with him under quickening and he easily out paced me.
XI Wiki

