There's also whether people ignore warning signs or not. I previously had a long-term rented Ford Focus via Canvas (which is no longer around). There were lots of issues with it. A bumper valence that had some screw holes that had expanded and would fall off if only 1 additional screw failed. They were unwilling to fix it, and it did in fact fall off on the highway later due to their unwillingness. Tire treads had almost worn bald, they were also unwilling to fix it until a flat actually happened. Car idled at high RPM, I told them about it, they were unwilling to do anything about it, and the engine started stalling on the highway a few months later.

Almost every single problem with the car had a warning sign that I had told them well in advance, but they were always unwilling to do anything about it.

If you do your due diligence by taking action at every warning sign (strange noise, RPMs not the usual value, etc.) a LOT of "reliability" issues would not happen in the first place. A car is a fast-moving piece of mechanical equipment and needs regular servicing.

Don't do what doctors do and "wait till shit happens" to diagnose you so that they can make a buck off of you in the hospital. Prevent shit.