Looks like Tesla might have a better solution for this now:
from Tesla got the worst score in the J.D. Power Initial Quality Survey
....Also just had the front under panel replaced under warranty. The original was a type of fiber mat that failed and tore in half in heavy but not deep water. The replacement is made of plastic, I assume. This has happened in rain to others with the same material. But I understand they stopped using this material last summer.
from Tesla got the worst score in the J.D. Power Initial Quality Survey