Playing a 72 Hr Game of Tag Across Europe - Ep 6

Some more questions and remarks about the rules I have:

* How are site-specific challenges interpreted? I got that you can draw a challenge card but can do the challenge later, even at another location. When you get a challenge that says "estimate the population of the current municipality you are in", or something within some distance of your current location, when does your current location gets defined for the sake of your challenge?
  And what happens if you draw the card while moving onboard a vehicle?
  Can you draw cards or complete challenges (like eating at the train's restaurant) while onboard a moving vehicle?

* You have cards requiring to eat local dishes, and for some countries there are dishes given on the card.
  - Are those only examples, or do they define what "local" mean? -- Honestly, there are many countries where there is not _the one_ local dish. But depends on region. (German "Bratwurst"? That's not local for all over Germany.)
  - And if those things mentioned on the card are the only valid dish considered "local": What is with regions that are not mentioned on the card?

* How much may the chasers separate? I observe that most of the time they stay together, but sometimes they separate locally. Chasing would be much more efficient if they separate from the beginning on, so I guess that separation is limited. On the other side, it does not seem to be completely forbidden, since locally you seperated sometimes to actually catch the runner.
  So, what are the detailed rules here?

* I am used to play a similar game with a bit different rules ("Live Scotland Yard"/ "Hunting for Mr. X"). In your game, the runner has both, a movement handicap (has to "pay" for transport, and has to complete time-consuming tasks to earn more coins to buy more transport) and an information handicap (does not know where the chasers are except if the runner pays a high price), whereas the chasers have both full information about the runner and unlimited transport. In "Live Scotland Yard", the runner had a slight movement deficit, whereas the information was evenly spread (syncronisation every given time) and the runner has the right to take river ferries what the chasers have not. On the other hand side, there are more than one chaser groups.

Regards!