I used to drive for five years (2015-2020) a 2009 naturally aspirated petrol Jaguar XF and it had zero issues except a single vacuum hose leak during my 100 000 kilometers (from 120 000 to 220 000) or so. The original rear upper wishbone arms were replaced and no more than expected normal wear & tear brake part replacements were needed. I still sometimes think that I'd like to have one again because in my opinion it was a quite nice and comfortable ride and turned out to be very good value as a used vehicle!
Maybe I had some kind of exception or are there dramatic differences between models and engines?
I’m not well versed enough on this but wouldn’t it be a problem with custom training that the specific project training codebases probably would likely have a lot of the implemented stuff, relevant for the domain, only once and in one way, compared to how the todays popular large models have been trained maybe with countless different ways to use common libraries for whatever various tasks with whatever Github ripped material fed in?