in literal translation it meens ( fare upon taximeter) and it means the fare will be according to taximeter,

fare paid by the car meter?

It means: ( Fare will be paid according to what is shown in the taximeter )

in literal translation it meens ( fare on taximeter) and it means the fare will be according to taximeter,

Means you will pay your fare accourding to the taxi calculator. Would you please have a look at the following link that may be give you an idea :) http://cabfarecalculator.org/what-is-a-cab-fare-calculator-and-how-does-it-work/