How long can a vehicle float on water before sinking?

A vehicle can typically float on water for about 30 to 60 seconds before it begins to sink. This timeframe is critical for occupants to react and escape the vehicle if it is submerged. The design and structure of most vehicles create a level of buoyancy for a limited period, as the air in the cabin and sometimes in the tires helps keep it afloat momentarily. However, as water enters the vehicle, it will gradually overwhelm the buoyancy, leading to sinking.

Understanding this timeframe is essential for drivers and passengers to remain calm and take the necessary actions, such as unbuckling seatbelts and opening windows (if the water is shallow enough) to maximize their chances of escaping before the vehicle submerges fully.