Most of the problems in any moving vehicle come from stuff close to the ground, tires, suspension, steering. This is true for everything from battery powered forklifts to semi trucks.
Leaks start showing up in old age and the involved parts don't typically wear out unless you ignore leaks and habitually run some subsystem low on its requisite fluid or run it dry. There are some exceptions for piss poor engineering but generally the prior sentence holds.
>Most of the problems in any moving vehicle come from stuff close to the ground
Is this based on your intuition or is there more to it? The DoT tracks automobile issues and it looks like the top ones are engine, engine cooling, other power train, air bags, and brakes. [1]
Leaks start showing up in old age and the involved parts don't typically wear out unless you ignore leaks and habitually run some subsystem low on its requisite fluid or run it dry. There are some exceptions for piss poor engineering but generally the prior sentence holds.