Earlier quoted context omitted.
Ever since working on Integrated-Logistcs-Support I take issue when terms like reliability are thrown around. Because in the end it's a result of looking at Reliability (stuff not breaking down often), Availability (stuff being functional when planned to be), Maintainability (how easily stuff can be kept functioning and repaired when broken), Supportability (how easy spares can be get) and Testability (how easy it is…
I think that's true. What most of us care about in cars is that they work when we want to drive them someplace right now , won't leave us stuck on the side of the road, and don't have prohibitive (time or money) planned maintenance. What's probably true is that older cars that aren't rusted out can probably be kept running by people with the appropriate mechanical skills even in the absence of proper factory/3rd part…
That being said, if I'd go on a 2k + mile trip I would put in some work to get the car fit for this. Looking at my dads VW camper, I'll just fill up drinking water, maybe gas and fuel. Without a serious amount of preventive maintenance those cars do have a tendency to break down so. I guess we are just not used to this kind cars or machinery anymore.