Still progressing through this. I'm about 40% of the way through according to the title screen.
Just came to this thread to express my displeasure with the carriage racing mini game.
Fuck the carriage racing mini game.
Seriously, it's got the worst rubber banding enemy AI I have ever seen. One race, all the other competitors got into a pile up, and I was about two streets ahead, before the mysteriously all caught up on the final lap and overtook me. Infuriating.
Rest of the game still good though. My favourite mission so far was the Tower of London one. So good, that one.