A vehicle communication system, comprising: a transmission node (10, 20) for transmitting vehicle control data, the vehicle control data including at least one of a measured value of a vehicle state or a driver's manipulated variable and a control target value of a control actuator in the vehicle; a reception node for receiving the vehicle control data; and a plurality of radio communication routes between the transmission node (10, 20) and the reception node; wherein the transmission node (10, 20) comprises load distribution means (12-14, 22-24) for selecting a radio communication route that satisfies communication limit time of transmission data (11, 21) including the vehicle control data,, wherein the required reliability of the transmission data (11, 21) is set in a data reliability setting unit (13, 23) of the load distribution means (12-14, 22-24), wherein communication time and reliability of the plurality of communication routes are evaluated in a route evaluation unit (12, 22) of the load distribution means (12-14, 22-24), characterized in that said load distribution means (12-14, 22-24) selects a radio communication route among the plurality of radio communication routes on the basis of the required reliability of the transmission data (11, 21) and reliability of the radio communication routes, and wherein said load distribution means (12-14, 22-24) selects a radio communication route candidate having a lower value as regards the reliability of radio communication route candidates as long as the radio communication route satisfies the required reliability of the transmission data (11, 21). a transmission node (10, 20) for transmitting vehicle control data, the vehicle control data including at least one of a measured value of a vehicle state or a driver's manipulated variable and a control target value of a control actuator in the vehicle; a reception node for receiving the vehicle control data; and a plurality of radio communication routes between the transmission node (10, 20) and the reception node; wherein the transmission node (10, 20) comprises load distribution means (12-14, 22-24) for selecting a radio communication route that satisfies communication limit time of transmission data (11, 21) including the vehicle control data,, wherein the required reliability of the transmission data (11, 21) is set in a data reliability setting unit (13, 23) of the load distribution means (12-14, 22-24), wherein communication time and reliability of the plurality of communication routes are evaluated in a route evaluation unit (12, 22) of the load distribution means (12-14, 22-24), characterized in that said load distribution means (12-14, 22-24) selects a radio communication route among the plurality of radio communication routes on the basis of the required reliability of the transmission data (11, 21) and reliability of the radio communication routes, and wherein said load distribution means (12-14, 22-24) selects a radio communication route candidate having a lower value as regards the reliability of radio communication route candidates as long as the radio communication route satisfies the required reliability of the transmission data (11, 21).