EDC for the car: The Winter Survival Kit

And suddenly you're stuck: in winter, in your own car and have to spend the night there. What to have in the car during the cold season so it doesn't get too uncomfortable, or even life-threatening. Or simply to help others:

• Shovel
• Ice scraper and small brush
• Flashlight with extra batteries
• Transistor radio with batteries
• Water bottles
• Food (energy bars, gels, dried fruits, cookies, chocolate, etc.)
• Matches and candles
• Extra clothing (socks, hat, sweater, gloves, underwear)
• Winter-appropriate footwear
• Large first aid kit with pocket knife/multitool
• Blankets or sleeping bag
• Tow rope or chain
• Jumper cables
• Tools (pickaxe, saw, lug wrench)
• Cell phone charger via cigarette lighter
• Reflective vest, warning triangle, reflectors
• Snow chains
• Extra fuel (10 liters in a canister)
• small backpack
• Cat litter for traction on ice