Abstract: A feedback and training system for use in a vehicle the vehicle comprising or connected to one or more sensors enabled to measure one or more physical parameters associated with the vehicle; the system comprising a database, configured to receive and store data from the sensors, a processor enabled to calculate at least one performance factor based at least partly on the current physical parameters measured from the one or more sensors, a display configured to display to a driver representations of one or more of the performance factors, wherein the calculation of a performance factor, or the timing of or the prominence given to the display of the representation of a performance factor, is dependent on historic sensor data stored in the database received previously from the sensors.