Car bodies are designed to be visually stimulating, appealing to both men and women. The symmetrical design of automobile bodies is often praised for its beauty and harmony, but some people argue that it can also elicit sexual feelings in both genders. Car bodies are typically shaped like human bodies, with a curved front end and straight backside, which may suggest curves, bust size, waist, hips, and even breasts. This symmetry has been studied in psychological research to determine whether or not it triggers an automatic response in terms of physical attractiveness. Psychologists have found that humans automatically find more symmetrical faces more attractive than asymmetrical ones, and this preference extends to objects such as cars.

Symmetry is linked to health, genetic fitness, and reproductive success. It suggests good health because symmetrical features indicate robust development during embryonic stages and adolescence. Symmetric facial features have been shown to increase perceived trustworthiness and dominance. Cars with more symmetrical body lines are considered better looking than those with irregular shapes.

There is no direct link between car design and sexuality. While some individuals may find certain types of car designs sexier than others, it is unlikely that their arousal would be triggered by the shape alone.

Researchers have investigated how symmetrical body shapes trigger sexual attraction through brain activity. Scans show increased activation in areas associated with sexual desire when subjects view symmetrical stimuli compared to asymmetrical ones. These studies suggest that symmetry acts as a cue for evaluating potential mates, indicating greater compatibility for reproduction. Therefore, while car shapes may influence sexual attraction, it is likely due to other factors, including color, size, branding, and cultural preferences.

Automobile bodies have become increasingly sleek and curvaceous over time, perhaps reflecting our evolving tastes towards aesthetic perfection. But it remains unclear if these changes represent true sexual desires or simply cultural trends. What we do know is that symmetry has long been an important aspect of human evolutionary biology and continues to play a role in our judgments about physical attractiveness.