Did me some hitch-hiking back in the day. Sydney-Perth, Melbourne-Perth (and the corresponding return trips) somehow always neatly approached four days, or 96 hours if you like.

Once got a ride from a trucker who did Adelaide-Perth-Adelaide once a week. Alternating with a colleague, that is, so he had 3½ days exactly to complete the round trip, including on/off loading at both ends. They never really stopped once they got the truck moving, and I do believe a lot of the driving was pill-fueled. Completely bat-shit, of course, but apparently not that uncommon a practice back in the eighties.

Bloody hell that's the most boring drive of the country too