I'd probably get a new Nissan Frontier since they seem to fetch better deals than the Toyota counterpart. The VQ38 seems to be a solid engine anyone handy with a wrench can DIY on.
That's not something that happens frequently especially on older engines. I would wager 99% of ICE cars from the the beginning of EFI will not receive OEM updates to the ECU. Modern cars sure with OTA updates until the manufacturer decides to pull the plug. My E53 is at peak M54 with its current...
The repairability question also comes with the lack of software support once manufactures discontinue support of a model. As we all know, EVs are primarily software driven where as older ICE are less reliant on that. It's not like you need to update the ECU to keep the engine running well.
It's proven that BEV are more reliable, but from a DIY perspective, less accessible. I think finding the happy medium between the two is something that will require time as electrical potential energy storage tech evolves and changes, and the infrastructure adapts as well.
Slate is clearly...
After getting in and out of several cars with different speaker setups (doors only, doors and center dash, doors and corner dash, center dash only), I think the bare minimum for decent quality is should be door speakers. All the byod centrally positioned bluetooth speakers will be a no-go...
With all those light and decor setup the way they are, I hope Slate is offering free beer sourced from the local microbrewery. The whole vibe of all the "pop ups" scream levity and biergarten. It would fit perfectly with the octoberfest season.
I'm also hoping Slate delivers on that promise of it being a simpler vehicle to DIY, but the jury is still out on that. Simpler is kinda a misnomer when it comes to this expectation we all have because a lot of thought and engineering still has to go into making the car DIY friendly.
Older...
That's really more of a Subaru problem and their insane persistence on using the boxer engine they can't seem to make reliable. Stuff like radiators and heat exchangers aren't routine items. The issues you mention with MOPAR are just usual MOPAR things. They're the butt of jokes for a reason...
There are cheap, well built modern ICE engines out there. One of my favorites that was recently discontinued in the Chevy Spark mk4 is the LV7 1.4L engine. It's a dead simple inline 4 with port injection. Engines like that cost next to nothing to maintain and it'd definitely be nice to see them...
I prefer paint over a wrap too. If I do end up getting a Slate, I'll have Maaco spray on a simple and cheap, single stage highlighter yellow on all the panels.
The manufacturers probably do that because they don't want to be held liable for irresponsible owners driving the battery voltage down to under 2.5v per cell potentially leading to premature battery failure. The OTA changing what your car can do on the fly is concerning though. Slate's selling...