In the 1970’s and 1980’s there were several books the either had characters that did it or promoted it.
Why is there no cooking tray in my new car’s engine bay?
Is it dangerous? (It would be less physically dangerous if there was a specific spot for it.)
The 90°C is a big issue as I would need ~205°C (400 °F) for real baking.
Yes. It would be helpful in areas where the grocery store (or Costco) is 15 to 30 minutes from the eating place (home).