According to the text, what distinguishes the 1980 BMW F1 telemetry from the later consumer-facing systems like OnStar?

Answer

The F1 system lacked the two-way communication defining the modern connected car.

While the 1980 F1 system transmitted data one way for racing diagnostics, systems like OnStar established a permanent, dedicated link intended for driver assistance, implying two-way communication.

According to the text, what distinguishes the 1980 BMW F1 telemetry from the later consumer-facing systems like OnStar?
inventionAutomobileVehicleconnectivity