I don't know, I'm just familiar with what the motor controllers do because I'm trying to do an EV conversion. I would imagine that the people working on parts

I don't know, I'm just familiar with what the motor controllers do because I'm trying to do an EV conversion. I would imagine that the people working on parts for the conversion market have a somewhat different development process than a regular auto manufacturer, in part because they're making things in low volume and in part because they just have to design generic reusable parts that do one thing properly. If you're building a whole car, you have to make sure everything works together as a cohesive whole. In some ways that would be easier because you know exactly what parts are being used together. I would hope that most of the safety-critical real-time software that controls a car's basic functions like braking and traction control and so on would be relatively simple and straightforward, but maybe that's too much to expect. My understanding of the way the auto industry works these days is that the major manufacturers are increasing dependent on a complicated network of 3rd-party parts suppliers, and I'd expect that to influence the character of the software stack somewhat.