The VG34 reads J1939, J1708, and OBDII bus data to surface real-time fault codes, fuel consumption, and idling patterns across mixed commercial fleets. Its 5G modem ensures low-latency video streaming from dual cab-facing and road-facing cameras simultaneously, supporting live coaching and incident reconstruction. Built-in accelerometer and gyroscope detect harsh braking, cornering, and collision events with precise timestamps. The open API integrates with dispatch, payroll, and maintenance software, making fleet data accessible organisation-wide. Over-the-air configuration and firmware updates eliminate costly truck-roll site visits for policy changes.