> In heavy rain, can the various drainage paths on the exterior be overwhelmed (especially if there are some leaf litter and/or spiderwebs in the wrong spots)

> In heavy rain, can the various drainage paths on the exterior be overwhelmed (especially if there are some leaf litter and/or spiderwebs in the wrong spots) My mom's Chevrolet Kalos got so bad in autumn that plants started sprouting out of the built-up fallen leaves under the hood. This was an actively used car driven almost daily. After that I started manually clearing those areas after washing the car. The amount of leaves you'd get out of a tiny little area shocked me every time. No way so much crap could fit in there and yet it did. Very easy to forget just how hollow areas under the bodywork are in a car.