Not Only Squirrels
Based on similar car-related findings, not only squirrels find their way in cars, but cats too have a way of creeping in, especially during the winter seasons. They always seem to find the perfect warm and comfortable spot there.
Cold Seasons
When it gets cold, cats are like squirrels who want the perfect spot so that they can get warm and cuddle up. To save yourself some drama and stress of hurting any potential animals, it is safest to give your hood a few knocks before you drive out. This way, you will know if any animals are there.