This symbol humanizes the rear of a vehicle, as if the driver were saying: "Behind this windshield, there is someone doing their best." A simple and comforting message in an environment that is sometimes tense.
Ultimately, this discreet fish is above all a reminder of gentleness, a small gesture inviting everyone to drive with more calm and consideration. It's a way of remembering that the road is a shared space, where everyone can contribute to making the journey more pleasant.