Abstract: A vehicle driver feedback system includes a control unit and a display unit. The control unit is arranged for registering a driver-influenced vehicle driving parameter and the display unit is positioned in the vehicle and arranged for displaying information to the vehicle driver. The control unit further is arranged for: iteratively calculating and storing at least one score value based on the at least one driver-influenced vehicle driving parameter, wherein the at least one score value reflects a magnitude of driver-induced energy waste; driver-induced fuel waste; driver-induced vehicle wear; unsafe driving; or a weighted combination of at least two thereof, and displaying on the display unit during driving of the vehicle a graphical score value development over time or relative to the travelled route as feedback to the vehicle driver.