The human brain has an innate response to auditory sensations that can be triggered by various stimuli such as music, singing, speech, and even car engine noises. These sounds can evoke emotional reactions in people, including excitement, anxiety, joy, fear, and sexual desire. It is a well-established fact that certain sounds can provoke feelings of arousal, attraction, and pleasure in many individuals.

The specific mechanisms behind this phenomenon are still being studied by scientists. One possible explanation for why some people find automotive sounds sexy could be due to the association between sound and touch.

When a person hears a deep bass sound, they may imagine touching something soft and velvety, which can trigger an instinctual response related to intimacy and closeness.

Another possibility is that the sounds produced by engines and exhaust systems activate regions of the brain associated with sex and arousal. This might explain why some people get turned on when they hear the roar of a powerful engine or the whoosh of air through an exhaust pipe.

The rhythmic pulses of turbochargers and superchargers have been linked to increased heart rate, breathing rate, and blood pressure, which can also lead to feelings of excitement and arousal.

There is evidence to suggest that some sounds can act as triggers for psychosexual development, leading to fetishization of cars and other objects. In the case of cars, the sound of an engine revving up or the screech of tires can remind some people of their own childhood fantasies or desires. These associations can become so strong that they develop into fetishes or fixations.

It is clear that auditory stimuli play a significant role in human sexuality, and automotive sounds are no exception. While more research needs to be done on this topic, understanding how sound affects our brains and behaviors can help us better understand ourselves and our relationships with others.