>Unless you are planing on weekly trips to the mechanic?

What? To install nightly builds? I think not.

I wouldn't put software into production (or even beta) that required weekly updates. And that's just for software to make a website or other app go, with no risk of injury or death.

Why would anyone want to be driven around in a vehicle by software that's so buggy it needs weekly updates?

How often do you update the firmware in production systems? And a commercial self-driving car definitely needs to be production quality, no?