Abstract: Present embodiments relate to a courier delivery box for transporting food, configured to be removably attached to a motorized and/or human-powered vehicle or bicycle, the courier delivery box comprising a housing, an interior for storing the food, and a door for providing access to the interior of the courier delivery box, wherein the courier delivery box further comprises one or more removably inserted shelfs, at least two shelf positioning structures for providing optional positions for the shelfs in the interior of the courier delivery box, such that the interior of the courier delivery box can be variably subdivided into two or more compartments by selectively inserting each of the one or more shelfs into the shelf positioning structures, heating means for heating at least one of the compartments, and one or more functional units arranged at a side of the courier delivery box, wherein the one or more functional units comprise an electronics unit 6 including power supply means.