The can holder or the trunk.
Water
Yes you can put water in your car so it doesn't burn up.
You don't put water in a 2000+ neon You don't put water in any car or truck. You may put water in outboard engines only.
yes
Clean water should be used and mixed with the proper coolant for your car.
When a car is hot, keep the car running and add water to the radiator. When a car is cold, you can simply put the water into the radiator.
Example- tAke a measuring cup and a toy car. Let's say you want to measure the volume of the toy car- fill the measuring cup with enough water to fully submurge the car but don't put it in yet. Write down the amount of water in the cup before you put the car in. Put the car in. Now write down the amount of water in the cup after fully submerging the car (there will be more). Now subtract the amount of water before the car from the amount after the car. That is the volume of the car.
Circulating water will not be sufficient and the car will overheat.
the antifreeze runs through all your water lines in your car . . . . you put it in your water tank or radiator
Usually a car does not run on water. If you have water in your gas you can put in some dry gas and be fine.
Dont put water into a battery you can go and get acid fluid for the car batteries from napa schucks and other stores but do not fill it with water. The acid fluid is only like 12$
Put luke-warm water on it. Boiling water will crack glass.