A method, system and computer program product are provided for determining a measure of brake system usage during operation of a vehicle, the vehicle comprising a power source for generating a motive force for propulsion of the vehicle in a first direction of travel, and driver controllable means for requesting a brake force that acts against a movement of the vehicle in the first direction of travel. When a driver of the vehicle requests a brake force, the method comprises determining an influence on the vehicle acceleration caused by the request for brake force; and determining, based on the determined influence, a measure of brake system usage of the vehicle, the measure indicating a level of economical driving, wherein a particular level is arranged to depend on the magnitude of the influence on the vehicle acceleration caused by the request for brake force.