Mirror Car (5e Equipment)
From D&D Wiki
Less of a car and more of a mobile, covert relaxation center, the mirror car is truly a rare sight to behold. While within the vehicle, you are immune to the effects of extreme heat and cold. This vehicle can hold up to two days' worth of food and drink cold and fresh for months. At the end of each turn you move this vehicle, you can decide what direction its mirror side is oriented in. Creatures must succeed a DC 20 Wisdom (Perception) or Intelligence (Nature) check to notice the vehicles existence.
Variant. Some jeeps include a mounted weapon, typically a heavy machine gun.