A big question is the size of the map: if cities are much farther away than in Train Fever, then planes will make for a practical altenrative when they come along in the later game. We don’t necessarily need 2x or 3x as many cities, but just a map that is 3x / 4x as big, so...
http://www.resourcefever.org/publications/presentations/presentation_buchert-IARC2010.pdf (2010) Google Scholar Buchmann, 2020 I. Buchmann BU-1003a: battery aging in an electric vehicle (EV). BU-1003a: battery Aging in an electric vehicle (EV) https://batteryuniversity.com/learn/article/bu_...