There was a tutorial either on FOnline.ru, or the Polish site. I'll look for it when I get home (on my phone)
From what I can see One link is just example trunk graphics with 99% transparency. Other one is legend showing how to "walk" from hex with car to hex with trunk. You just use numbers representing directions to move by a hex, eg MiscEx.Car.Bag_0=333. Similar you do with blockers: MiscEx.Car.Blocks=4132221152012201511121034151312141 but in this case numbers are in format [direction, distance]. It starts from car hex again.