@Marnet. I drove trucks.like that F-100 you described. I got my driver’s license in the late 1950s. It seems to me that around 1960 Ford had one model pickup truck where the cabin and bed were one unit rather than the cab and bed being two separate parts.
One truck that I really liked was my uncle’s 1951 F-1 Ford pickup with a flathead V-8 and a 3 speed column shift transmission. That truck could move with the traffic on the highway. The Chevy and GMC trucks still had the splash lubricated 6 cylinder engines and probably had a top speed just under 70 mph.
By 1960, the trucks did become much more comfortable to travel long distances. You mentioned that the 1960 Ford had side vent windows. My 1950 Chevy pickup did not have side vent windows. That feature wasn’t available on Chevy pickup trucks until 1951. It seems to me that truck manufacturers took a step backward in eliminating these windows.