Vehicular display system

A vehicular display system (100) includes a vehicle on-board unit (26) having a vehicular display part (26a), and a mobile device (28) having a mobile display part (74). The vehicular display part (26a) is fixedly mounted on a vehicle (10) and configured to display vehicular information (80) including at least a vehicle speed (81). The mobile display part (74) is configured to display the vehicular information (80) including the vehicle speed (81) when the mobile device (28) is set in position between a driver (50) of the vehicle (10) and the vehicular display part (26a).