I really hope an electric car model will take up the mantle for reliability and repair ability. Toyota is lagging hard in the EV space. Maybe those Chevy Bolts will last a while? Or the Kia EVs? Probably the F150s, but I'd prefer a compact.
You can already buy random EV parts online. As automakers make more models and source more common parts for their cars to do this competitively, this aftermarket gets better and more useful. A fairly promising thing is the apparent popularity of EV conversions and home-brew EVs, so perhaps there will be some competition for e.g supplying full-on computer control systems with some serious capabilities. There are also more modifications people will conceivably want to do on their cars. I know someone whose petrol ute has a fridge under the canopy, powered by a solar panel on the roof and an extra battery. Nobody is out there drilling a hole in their iPhone to add a headphone jack, because it would be really bad, but you can do all sorts to cars without ruining the whole experience. The complexity and variability of what people want their cars to do leads to modifications and that demand will have to be met somehow. It's also the kind of strange demand that cannot be met by the big automakers alone.
As for reliability, I hope the market will continue to speak pretty loudly with their wallets on the importance of that. People care about it now, I have no reason to believe they'll stop.
In replay of the recent election in Aus.
There are a lot of high mileage Teslas out there. Most of Tesla's negative reputation seems to be people complaining about fit and finish (paint, panel gaps). The actual mechanical reliability seems to be quite higher than a normal ICE car. However EVs are still pretty new so long term data is still being collected.
http://www.truedelta.com/car-reliability
But Tesla still sells well for other reasons, so apparently they don't have to care about product quality.
The writeups of high mileage Tesla's that I have read have not mentioned very many repairs - and that seems to be the general consensus on the owner's forums.
Note that software updates are also considered 'recalls' on Teslas now.
one data point on a high mileage model 3 : https://electrek.co/2020/09/26/tesla-model-3-high-mileage-ex...
https://www.statista.com/chart/23586/average-reliability-sco...
Considering how many Teslas have been shipped, a postmarket community forming around the vehicles seems likely. I just don't know how successful it will be when the manufacturer is so hostile toward third party repairs and tinkering overall.
I don't doubt they are reliable cars, though. So are Apple computers and phones.