@albertcardona The unsaid part of this is that the cheap airlines are private (and hence efficient), while most train companies are either public or semi-public, and hence both expensive and inefficient. If you take a look at Polish train prices, which aren't that bad compared to other places, going by car instead becomes more affordable at 3 to 4 people, assuming normal tickets. This makes no sense, there's no way a car is more efficient than a train.
miki