Given the simplicity of electric cars I feel like the Tesla would be in a pretty good spot.

But Tesla's continuous improvement means parts aren't tied to model years and are often already hard to track down. They're not going to be made by third parties given the lack of scale.

I'm foreseeing small faults totalling otherwise perfectly good cars later on in the current generation.

If Tesla ramps up like they're claiming though, this problem will sort itself out.