One of the example uses given in the talk is 3D tutorials, which I could imagine being handy. Not sure I'd want to click on the car parts for it but with the correct affordances I could imagine a potentially useful interface.

More expensive cars will have more electronic. They kinda want to sell them.

In the US, no. Backup cameras are required by federal law as of 2018. The intent of the law was to reduce the number of children killed by being backed over because the driver couldn't see them behind the car.

Game engines are probably trivially cheap to produce in 2026. You forget that Toyota sells 10M cars per year. In 3 years thats 30M cars. What does it cost each buyer for the game engine? 30 cents?

I've tried fixing some code manually and then reused an agent but it removed my fix.

Once you vibe code, you don't look at the code.