Some Cars Ready to Start Semi-autonomous Driving

Is the car can resist the water if sometimes can be a flood?

I will excuse the wording of your comment, as clearly you are not fluent in English, but you bring up a very significant issue.

As drivers become increasingly dependent on these sophisticated electronic control systems for the operation of their vehicles, how reliable will these systems be over the lifetime of the vehicle, given the extreme environmental conditions they will be exposed to? Until now, the failure of a car's electronic systems has lead only to an inconvenience (with a few glaring exceptions) for the driver, ie "My Cavalier won't start".

Presently, these systems only exist in prototype vehicles and are slowly appearing in high priced luxury models. What happens when this technology is introduced to the general production model cars that you or I might buy. These cars will not be designed by engineers, they will be designed by accountants!