I also want to do the same by my birthday. I've read the mega thread and there is still a couple fine details regarding having charcoal grills in car that I wanted to know.
For example, can I put them in the trunk or do they need to be inside the main cabin of my car with me (like in the backseats)? I have seen some people mention their trunk, but not sure if my trunk is that permeable to the inside of my car where I will be.
Also, should/can I wrap the area around the grills in tin foil or another fire-resistant material? I know I'll need bricks (and maybe a paving slab), and possibly some water underneath to trap some heat. Since it will be in the car, there are materials that can be flammable. It's not a super old car, but it's from 2009 so not sure how modern it would be considered.
I know a bucket is mentioned and I considered also getting that, but I did get two portable charcoal grills with decent reviews that weren't too different in price from getting two steels buckets.
I also am deciding how to tape up my car to insulate it better since it definitely has some open spots where I feel the wind breeze when I drive around. I want to do it in a way that's not going to grab anyone's attention immediately since it will be hard to find a spot where no one will go by eventually or within 8 hours. Thought about a campsite but it would only be easy to hide what I'm doing if no one is really there.
Thank you for making this thread! I didn't feel like posting my questions to the megathread on my first day as a member of this site
Pardon my ramblings.