In psychology, automobile design has long been recognized as having an impact on human behavior. The shape, color, size, and performance of cars influence our perception of them, including their perceived attractiveness and suitability for various purposes. One aspect that has received little attention is the potential effect of car shapes on sexual attraction. This study investigated the extent to which the shape of boomerang-shaped daytime running lights evoked subconscious sexual desire and explored how visual-perceptual mechanisms were involved in this process.

The boomerang-shaped daytime running light is a prominent feature of some modern cars, characterized by its curved shape resembling a boomerang. Previous research suggests that such designs can trigger unconscious arousal and increase the likelihood of people choosing those cars.

The underlying psychological mechanism remains unclear. To address this gap, we conducted a series of experiments using eye tracking technology and questionnaires to examine participants' reactions to boomerang-shaped daytime running lights.

We found that participants who viewed images of boomerang-shaped daytime running lights reported higher levels of sexual desire than those viewing other car parts or no image at all. We also observed that these effects were modulated by gender, with men exhibiting stronger responses than women.

We identified specific features of the boomerang-shaped design that contributed to its erotic appeal, including curvature and symmetry. These findings suggest that boomerang-shaped daytime running lights may have a subtle but powerful effect on sexual attraction, which could impact consumer choices.

This study has implications for automobile designers seeking to optimize their products for market success. By incorporating boomerang-shaped daytime running lights into their designs, they can potentially evoke positive emotional responses from consumers, leading to increased sales and brand loyalty. It also highlights the importance of considering non-rational factors when making decisions about car purchases, as visual cues can influence our perceptions and behavior beyond our conscious awareness.

This study provides valuable insights into how the human mind processes visual stimuli and responds to environmental cues, contributing to a better understanding of human cognition and behavior.