Abstract: A method for preparing a motor vehicle for a journey includes recording, using a mobile electronic device, at least one piece of first information, which is representative of at least one piece of journey information, before the journey, and ascertaining a piece of second information that is representative of at least one actual state of the motor vehicle. The method also includes determining at least one piece of preparatory information on the basis of the first information and the second information. The method further includes displaying the preparatory information on the mobile electronic device in order to prepare the motor vehicle.

Abstract: The invention relates to a method for improving the energy efficiency of a motor vehicle (1) comprising the steps of: detecting a driving situation; determining an efficient load range (23) for a power train (2) of the motor vehicle (1) depending on the detected driving situation; detecting a current load of the power train (2); and indicating the determined efficient load range (23) and the detected current load in a combined display device (4), so that a driver may selectively move the power train (2) of the motor vehicle (1) into the efficient load range (23). The invention further relates to a motor vehicle (1) and a computer-readable medium comprising executable program code configured to execute the above method.