I don't think it's a monumental task for a vehicle full of sensors to tell the difference between rain and submersion. You don't even need new sensors. For exam

I don't think it's a monumental task for a vehicle full of sensors to tell the difference between rain and submersion. You don't even need new sensors. For example, if all the suspension height sensors all max out and stay there for more than three seconds while the car is in Drive, the car is sinking.