Blog Zbod
Podium Finisher
The sensors in the existing in-car telemetry package already are provide a considerably more accurate location than GPS (which is watered down for non-military consumers), so they could just use that data.
But, IMHO, you're over-thinking this. Just install a standardized reversing sensor atop the car's brake light. Set the sensor to, say, 20 feet so whenever a trailing car is that close or closer, it switches off one of the leading car's sparking plugs. Or dials back the rev limiter to 17K.
Operationally, it wouldn't be any more daft than DRS, and far less expensive.
But, IMHO, you're over-thinking this. Just install a standardized reversing sensor atop the car's brake light. Set the sensor to, say, 20 feet so whenever a trailing car is that close or closer, it switches off one of the leading car's sparking plugs. Or dials back the rev limiter to 17K.
Operationally, it wouldn't be any more daft than DRS, and far less expensive.