On a hot day, parked in direct sun, our frunks are the coolest part of the car.
Or maybe you have disabled, the interior, climate control? Or maybe you live in environment with less sun than Arizona.
I saw someone put propane tanks in there and I'm always nervous when I have them in the car. They usually go in the back seat.
Yes.
#ad lolI've lined our Model 3 frunks with a single layer of reflectix bubble foil insulation:
and this foil tape:
It's cut and taped to fit the contours of the frunk and has a hinged lid that flips back. Foil tape forms the hinge but the enclosure is not taped to the car, it just lifts out like a lightweight frunk liner with lid.
I leave it in the frunk permanently and use it every time I go grocery shopping, usually without cooler packs, it keeps the ice cream, milk, meat and veggies cold for the trip home, even if I decide to make a couple of detours/stops. I use the Tesla phone app to open my frunk as I exit the supermarket with my cart full of groceries.
For road trips I have a large soft-cooler I put inside the bubble foil enclosure with one or two of these inside:
The cooler is this from AO Coolers (Carbon Stow-n-Go):
Ice is out-dated and I can't believe anyone still uses it in normal cooler usage. The Cooler Shock flat packs are far colder than ice and last two days (cold) to three days (cool) in my setup, even travelling through 100-degree deserts due to the bubble-foil frunk wrap keeping a cool environment around my soft cooler. It may help that my hood is Pearl White to also reflect the sun's energy.
Ice is messy and not as cold. The Cooler Shock packs will freeze produce if you leave them in direct contact with the packs because they are not filled with water but a solution that has a freezing point of 18 degrees Fahrenheit. Of course, no drain is necessary. These work far better than the hard-shelled "blue ice" packs. I like the large size Cooler Shocks, on an extended road trip I will ask the front desk of the hotel or motel I'm staying at to put it in their freezer overnight when I'm departing the next day. You could also use more smaller Cooler Shock packs so they fit in your room freezer.
Depending on the layout of the Cybertruck frunk, I plan to do something similar. I may construct a box of 1" Dow Foam Board sized to fit a cooler for even better performance. You might be surprised how much better a cooler works in hot weather when it's kept in it's own cooler environment. When I lift the bubble foil lid of the frunk liner I made for our Model 3's, the cooler is surrounded by cold air, even on a hot day. Since my cooler does not take up the full width of the frunk, there is a cool space beside the cooler suitable for things like cheese, bread, and other items that don't need to be ice cold.
Well-made soft coolers rock! Skip the cheap Made in China stuff. Most coolers that hold this much stuff require both hands to lug around, I can haul the Stow-n-Go with one hand. Run your cooler dry, much mo' betta' with a thermally efficent system like I've described above. Summer is coming, don't be stuck with warm beer and soggy food in a messy flood of melted ice!
Oh, no. The frunk is only cooler when comparing it to the cabin with the A/C off. I generally don't leave the A/C on when I'm not around. So I'm comparing tempertures of the non-conditioned cabin with the frunk, after they have both been sitting in the hot sun. The frunk always wins.
