Apologies for my absence of late, trying to catch up with things elsewhere and have even more ahead of me. There are cars in this setting, my own nation exports them to any and all countries regardless of political relations. Eisenkreis, the name of my nation, is a bit of a technocracy, and so while they don't actually produce much in terms of blue Coal, they consume significant amounts and it is their number one import next to grains and other food items. People who wish to have trade with my nation are free to establish it, though anything military will require the Queen's personal approval before-hand and I'll have to get you guys to PM me on that first o.~ Other than that, for information purposes, trade would be done through the provincial corporations run by the state itself. Arctonen for refined and finished consumer goods such as completed machinery and engines for other such items. Ytterban for the more absurd and fantastical items(You know you want that Blue-Coal powered toilet.) Finally, Kellenheim for textiles and parts.