If the car is completely sealed (air is not escaping and water is not coming in) and you are alone and can stay calm, probably a good hour or so. It depends on the size of the cabin how much oxygen is available to you.
If however the air is leaving and water is coming in, then you only have as long as you can hold your breath, probably a min or two.
There are many car engine damages that could occur to a vehicle from being submerged in water. Your car could short for example.
Junk it! It will be a money pit if you try to save it.
No, it is not. BUT: Starting a car with the exhaust submerged carries other risks. By implication there are other things submerged that could be damaged by water, such as the alternator, HVAC, or transmission. Also, the engine may not start if the starter cannot overcome the water pressure.
Really depends on the water and duration. I've had a vehicle get fully submerged in fresh water and be fine after a flush. In salt or brackish water, it wouldn't have turned out so well.
Only if the grating is submerged under a couple of inches of water.
Every component of the car will possibly need disassembled and checked for water damage.
It is generally easier to escape a car that is fully submerged underwater because there is equal pressure inside and outside the vehicle, making it easier to open the doors or break a window to escape. In a half-submerged car, the pressure difference between the inside and outside makes it more difficult to open the doors or windows.
Long enough for ted to panic, save himself and stumble to his hotel!
I guess if you had the choice of where to submerge your vehicle, a lake would be the best place. Lakes are usually fresh water and relatively clean; relative to, say, flood waters. But fully or even partially submerged vehicles are NEVER the same after they are recovered, dried out, and cleaned up, especially if they were submerged in salt or filthy water. Some companies will "total" a car that has been immersed in salt or flood waters. When it has been submerged in fresh water, however, totaling depends upon the value of the car: if the remediation costs more than the car is worth, they will total it.
You are. Don't drive through a flood. A car engine was not intended to be submerged in water, particularly dirty flood water.
It's a Miracle - 1998 Submerged Car 4-23 was released on: USA: 31 January 2002
Go fast and don't stop and DONT let it get submerged. Also you shouldn't put any RC car in water that is deeper then the height of the wheels or the clearance of the chassis to be safe.