... but else (some) my vehicles may need rebalance too.

Matrix for balancing of trams:

capacity of passengers: length*4

capacity of post: length*2

running costs: speed*1*length/8

power: speed*3

weight: length*1,75

Matrix for balancing of metro:

capacity of passengers: length*4

capacity of post: length*2

running costs: speed*1*length/8

power: speed*6

weight: length*3,5

Matrix for balancing of no-powered train cars:

capacity of passengers: length*5

capacity of post: length*3

running cost: speed*0,5*length/8

weight: 3,5

Matrix for balancing of locomotives:

running cost: speed*5*length/8

weight: length*6,5

power: speed*20

price is random - not tied to technical data of vehicle

weight and power are based on real numbers - but simplified

and that you may see different capacity from matrix is based that it is only matrix - but for counting of capacities were taken some other factors - presence of driver cabin or so.

as I found on Urbanica and Amphibia (see topic Next vehicles to know what they are), all may have problems with making profit on lines that are not well busy ... but generally they are capable to make profit easy.

Reason for very low running cost of the previous versions of Amphibia and Varieta was attempt to have vehicle that would fully replace tw_96c_032 and its trailer cars

but after finishing of Galactica and other planned trains (Atlantica and Pacifica) I will try to prepare some slow diesel-powered trains like it (tw_96c_032).