The concept of psychological cars has been studied since the early days of the automobile's introduction to society. This concept refers to the idea that some people are attracted to cars in an erotic way, leading them to have feelings of passionate excitement when they see or drive them. It is believed that this phenomenon may be related to both biology and psychology. Some theories suggest that it could be linked to a fetishistic interest in certain shapes, colors, or features of the car itself. Others believe it may simply be due to cultural conditioning, whereby individuals associate particular types of vehicles with romance or sex appeal. Still, others propose that the attraction stems from unresolved childhood issues surrounding gender roles and identity. Whatever the cause, researchers agree that there is something unique about cars that can arouse people emotionally and physically.

Psychologists have found that sexual desire can manifest itself through various means, including visual stimulation such as images of cars. In one study, participants were shown photos of different models of cars while their brain activity was monitored using fMRI scans. The results showed that areas associated with arousal lit up when participants viewed images of specific types of cars, indicating that even just looking at an automobile could trigger sexual excitement.

Studies have demonstrated that driving experiences can lead to increased levels of dopamine release in the brain, which is also associated with pleasure and reward.

Research indicates that certain aspects of the vehicle's design can play into its appeal for some drivers.

Curves and contours on the body of a car may evoke feelings of sensuality and femininity, while sharp lines and angles might suggest masculine strength and power. Certain colors may also convey messages about status, wealth, or personality traits that can attract potential partners.

The act of driving itself has been described as "a metaphorical act of penetration" by some scholars, leading to increased feelings of intimacy between driver and passenger.

Despite these findings, it remains unclear why some individuals are drawn to cars in this way. Some experts suggest that it may be due to unconscious associations made during childhood or adolescence, whereby the car becomes linked with personal memories or emotions. Others propose that there is simply something unique about the experience of riding in or driving a car that cannot be replicated through other means. Still, others believe that the attraction is purely physical and does not involve any deeper psychological meaning.

More research is needed to fully understand the nature of psychological cars and their place within human sexuality.