If you want to know how to capture and handle automotive test data, look into process automation systems for manufacturing industry. I used to work at petrochem

If you want to know how to capture and handle automotive test data, look into process automation systems for manufacturing industry. I used to work at petrochemical facilities in 90s as process control engineer, we not only received data from Thousands of I/O inputs (for example, from temperature, flow, pressure, vibration, rpm sensors) every second to every tenth of a second, but we processed them, made decision and sent out I/O signals to controllers (for example, flow control valves). We used combination of programmable logic controllers and distributed control systems. Talk to companies like Honeywell (I believe they do something similar to what you are trying to do for aviation industry), ABB, Foxboro, etc. These guys have been doing this since 80s.