The McLaren Group makes use of telemetry systems that utilize data generated by race car sensors in test and practice sessions as well as actual races.
The telemetry used in civil aviation transmits data on engine performance and the behaviour of other systems back to base while the plane is in the air.
This was a time when Motorola owned the nascent mobile phone business, pagers were mostly one-way, and the only uses I could find for wireless data beyond simple messaging were telemetry (look it up) and logistics management for trucking companies.