Currently half way across the Eyre Highway. Have not seen a single road kill between Norseman and Eucla. Also did not see any terrestrial animals along the way until Mundrabilla Station when we spied some cattle.
I well remember one trip in the '60s somewhere west of Eucla I saw a giraffe and then an elephant and realised I must pull over and sleep, had been on the road by myself for 19 hours. Never did that again and I couldn't now.
Had friends working in the mines in WA. They drove for several hours. Driving and drinking as they did in those days. Pulled over and had a sleep. A few hours later they hit the road again. Still not sober. But found themselves back at the mine. They hadn't realised they had turned around!!!