In summer, how high can the temperature inside a car get when it's parked under the sun?

In summer, when a car is parked directly under the sun, the interior temperature can rise rapidly. On a hot day with an outside temperature of around 35°C (95°F), the temperature inside the car can reach 55–70°C (131–158°F) within just 30 minutes. Surfaces like the dashboard or steering wheel can become even hotter. This extreme heat can be dangerous, especially for children, pets, and electronics left inside. It's always advisable to park in the shade or use sunshades and ventilation measures to reduce heat buildup.