A parked car does not warm up during a heatwave. It cooks. Temperatures inside a sealed vehicle can climb to dangerous levels in minutes. Research shows that interior car temperatures can rise more than 20 degrees Fahrenheit in about ten minutes, even when the outside temperature feels merely hot instead of blistering. Sunlight blasts through glass, traps heat inside the cabin, and turns the vehicle into a metal greenhouse sitting quietly in a parking lot.
That intense heat does more than make the steering wheel feel like a frying pan. It destroys certain everyday items people casually toss into cup holders, glove compartments, and back seats. Some objects melt, some lose their effectiveness, and a few can actually become dangerous. A quick check of what lives inside a vehicle during extreme heat can prevent ruined items, wasted money, and, in rare cases, even serious hazards.
