Cars can be driven upside down.

This interesting fact stems from the design of modern car engines, which utilize a fuel injection system that can continuously supply fuel and air to the engine regardless of its orientation. This means that in theory, a car could be driven upside down and still continue to run smoothly. This capability highlights the advanced engineering behind cars and showcases the versatility of their internal systems. However, driving a car upside down is not recommended for obvious safety reasons and should only be left to the realm of imagination and experimentation in controlled environments.