Methods of operating a motor vehicle

A method of operating a motor vehicle is provided. The method comprises: determining a planned or predicted route of the motor vehicle; identifying an emissions causal event along the planned or predicted route, the emissions causal event corresponding to a period of operation of the motor vehicle during which an emissions value of the vehicle is increased, relative to the baseline emissions value of the motor vehicle; identifying a location of the emissions causal event; and pre-emptively adjusting one or more operating parameters of the motor vehicle in order to reduce the emissions value of the motor vehicle when the motor vehicle travels through the identified location. Also provided is a 2nd invention for storing determined emissions values in a memory.