Automobile designers have long known that certain aspects of automobile construction can be intensely pleasurable to touch and explore for those who have an interest in them. While many people may find their cars just functional tools, others experience them as objects that stir strong emotions. The power, control, speed, movement, and even the physical sensations produced when driving can be deeply satisfying and intoxicating. For some individuals, this carnality extends beyond simply enjoying the act of driving to engaging in autoerotic behavior involving the vehicle itself. Autoerotica is defined as a sexual attraction to vehicles and/or parts thereof. It's often confused with objectophilia, which involves a person having romantic feelings towards non-human objects. Autoerotica is distinct from objectophilia because it focuses specifically on the vehicle's mechanical properties rather than its appearance.

In addition to autoerotica, other psychosexual phenomena related to automobiles include fantasizing about sex while driving or being driven in a car, fetishes focused around specific features such as leather seats or steering wheels, and confusion between arousal and excitement caused by driving. Some researchers suggest that these behaviors are linked to Freudian theories of psychosexual development, where the primary erogenous zones are located on the body based on what stage of life they were experienced during childhood.

The genitals are associated with early stages of infancy, whereas the mouth represents the beginning of adulthood. This could explain why drivers often associate pleasure with steering wheel stimulation.

While autoerotica may seem strange or even taboo to outsiders, it's not uncommon for those who identify as "petrolheads" (car enthusiasts) to form strong emotional bonds with their vehicles. They might describe them in ways that mirror how people talk about partners, using words like "sexy," "seductive," "sensuous," or "lustful." These intimate connections can extend beyond simply appreciating the aesthetics or performance of the vehicle; some petrolheads may even see themselves as extensions of their cars or vice versa.

The tactile manipulation of high-performance steering, paddles, and pedals can produce sexualized anticipation due to the combination of physical stimuli and imaginative potential they offer. As more research is conducted into this unique subset of human behavior, we will gain greater understanding and acceptance of those who experience carnality through automobiles.