Higher capacity, tend to be more durable (with some still in service after 50+ years of service), and yes more energy efficient. E-class trams [1] that are bei

Higher capacity, tend to be more durable (with some still in service after 50+ years of service), and yes more energy efficient. E-class trams [1] that are being deployed (46 in service and more added each month) here in Melbourne can carry up to 210 passengers (64 seated, 146 standing). [1] https://en.m.wikipedia.org/wiki/E-class_Melbourne_tram https://en.m.wikipedia.org/wiki/E-class_Melbourne_tram