Dreaming of a snake on a car can carry various meanings depending on the context of the dream and your feelings about snakes. Here are some interpretations:

1. Transformation and Change: Snakes are often symbols of transformation due to their ability to shed their skin. Seeing a snake on a car could indicate that you are undergoing a significant change in your life, especially in areas related to your journey or direction (symbolized by the car).
2. Hidden Threats or Deception: Snakes can also represent hidden fears or threats. If the snake evokes fear in the dream, it might suggest that there are underlying issues in your life or relationships that you need to confront.
3. Control and Freedom: A car typically represents control over your life path. A snake on your car may symbolize a feeling of being out of control or having something (perhaps an emotion or situation) that is affecting your autonomy.
4. Intuition and Wisdom: In some cultures, snakes are seen as wise creatures. The presence of a snake on your car might suggest that you need to trust your instincts and rely on your intuition regarding a decision you are facing.

To gain clearer insights, consider your personal feelings towards snakes and the specific context of the dream. Reflect on any recent changes or challenges in your life that may relate to the themes mentioned above.