When I was working in Wewak (PNG) in 1969, we had a hired Isuzu Bellett as a company car. About six months old, it was like a new car - except for the extensive rust. This was so bad that the door panels were essentially only attached at the windowsill. The hire company had a slightly older one that had been withdrawn after the battery fell out when the carrier collapsed.
At that time the main road driven in the town was the several kilometres between the airport and the town, along an unsealed road behind the beach, with salt spray drifting across it - and everything was always damp, with rain every day and hot (this was in the dry season, when it usually did not start raining until lunchtime - in the wet it sometimes stops raining in the morning).

