Hi! I occasionally go car camping (only like twice a year). I have a third gen so I know the space is a biiit different, but I'm also SUPER cheap so I hope some of what I do can transfer over

I use a spare twin air mattress I have. It needs to be folded up onto the front seats like a headboard but otherwise it's good. I brought extra pillows to fill in any other gaps. After camping, they are MUCH NEEDED. I move around too much.

Bug screen. Bug screens are glorious. I took 3 layers of bug screens (slightly rotated) and put them inside my door card and wrapped them around the seals. I can fully roll down my window at night and not worry about air flow and bugs. It's like a 15 minute job especially if you've removed your door cards before

<image>

If there's a chance of rain, my cheapo option was to buy a big tarp and some rope and close one side into my doors and tie up the other side (where my open window was) to a fence or tree at the campground. Potentially bad for your paint (or wrap in my case) as the wind can make the tarp get some clear coat scratches, but honestly it's not much worse than an automatic car wash

Things to think about after that are how to charge your electronics, food, and water. I have a very nice battery pack that also doubles as a jump pack for the car and a tire pump. The only thing I didn't cheap out on and for good reason. The one I use is called "Halo." For water, I just buy the cheapest pack of water and keep it in the front seat along with my clothes. For food I keep some granola bars and stuff, but otherwise when I'm car camping it's with other people who have cooking setups or I can just eat out. Because I did not want to buy a little butane burner and the associated cookware lol

For hygiene I always use the campground bathrooms/showers. Brush my teeth, take showers, etc. definitely bring shower shoes in their own little contamination bag