2. European trucks to some extent is driving to see the scenery by the way to earn money in the game. The scenery in each region is more or less the same. Each has its own characteristics.
3. My favorite is the map of the Baltic Sea, the cheapest price of oil, the only drawback is that there are few high speeds, most of them are running townships and small roads, easy to get into a car accident.
4. Specialized transportation and weight transportation, can increase the diversity of tasks. I don't know if transporting vaccines and medical equipment is one of these two types of transportation.
5. Vaccine and medical equipment transportation is very profitable. Without it, the game is less interesting by half. Tires and trailers, it depends on the individual, I have a collecting fetish and bought almost all of the dlc for Eurocard 2.