What are the consequences of forgetting to close the car window and letting water in?

[Roman]

Water entering the car can have the following effects: 1. Minor water ingress: A small amount of rainwater splashing in will not affect the car's wiring system or mechanical system, as the wiring system is protected by covers. Simply clean and dry the wet items. 2. Severe water ingress: Rainwater may enter the cabin, potentially causing malfunctions in electronic devices or rusting of some components inside the cabin. Additionally, since the front passenger seat is close to the dashboard, electronic devices are likely to get wet when water enters the car. Even if the electronic devices are not damaged, the front passenger seat, floor mats, and other interior parts are likely to absorb water.