The smell of leather, wood, and plastic has been associated with sex appeal for decades. In fact, several studies have shown that car interiors can be designed to provoke strong emotions related to arousal and attraction. One such study found that when male participants were exposed to the scent of new car upholstery, their testosterone levels increased significantly. This suggests that this particular scent is linked to feelings of power, dominance, and sexual arousal. On the other hand, female participants reported feeling more attractive and confident after exposure to the same fragrance. Other research has shown that certain materials used in automobile manufacturing may also evoke psychosexual responses.

One study found that men who drove sports cars exhibited higher levels of testosterone than those who did not.

A survey conducted by Jaguar Land Rover revealed that nearly half of respondents felt that the interior design of their vehicle played an important role in their overall driving experience. This indicates that there may be something inherently seductive about being enclosed within the confines of a luxurious automobile environment. While it's unclear exactly how these factors contribute to sexual desire or attraction, they suggest that there is likely some connection between them and our biological drives. It could be argued that the combination of powerful engines, sleek lines, and high-quality materials create an atmosphere conducive to intense passionate feelings. Some experts believe that this effect is due to the sensory overload that occurs when we are surrounded by so much stimulation all at once. Others posit that the tight quarters and close proximity to another person facilitate intimacy and increase feelings of closeness and physical contact. Whatever the case may be, it seems clear that the psychology behind autoeroticism is complex and multifaceted. And while not everyone experiences these effects, for many people, the smell of new car upholstery is enough to get the engine revving.