1) Australian invention 2) Auto racing medium
Found on
https://www.crosswordclues.com/clue/racecam
RaceCam is a video camera system used primarily in motor racing, which uses a network of car-mounted cameras, microwave radio transmitters, and relays from helicopters to send live images from inside a race car to both pit crews and television audiences. The technology was first developed in the late 1970s by ATN-7 (now the Seven Network) in Austr...
Found on
http://en.wikipedia.org/wiki/RaceCam
No exact match found.
