The term "aerodynamics" refers to the study of how air flows around objects moving through it. When applied to vehicles, this science improves their speed and stability. The same principles can be used to create a sense of excitement in automotive design for psychosexual purposes.

The addition of an oversized rear wing (spoiler) is known as the 'humpback' effect due to its resemblance to a woman's posterior. This visual stimulus can excite both men and women, making them feel more attractive. Sexually, the spoiler represents dominance, aggression, control, power, and submission. It can also symbolize fertility, procreation, and reproduction. Its shape implies physical attraction towards the vehicle itself rather than just its function. In cars, the installation of a body kit involves replacing original panels with custom parts that enhance styling or performance. The process is often arousing because it requires close interaction between the installer and car owner. Body kits are typically made from carbon fiber, which has a distinct texture and weight that produces tactile sensations when touched. They may also feature cutouts and bulges that accentuate certain areas of the vehicle, such as the hood, trunk lid, doors, fenders, and bumpers. Such modifications can heighten sexual feelings by emphasizing curves, contours, and muscularity. Performance parts include engine modifications, suspension upgrades, and exhaust systems. These alterations increase horsepower, speed, handling, and noise levels. They require expertise to install correctly and therefore involve a special relationship between technician and customer. Physically interacting with these components during installation increases touch-based intimacy while creating anticipation about their use on the road. Fetishistic desires around automobiles are common in adult entertainment.

Some people enjoy watching videos of mechanics working on cars or roleplaying as service technicians. Others fantasize about being trapped inside a broken down vehicle or driving recklessly through traffic at high speeds. Some may even dress up in uniforms or wear latex gloves for greater immersion into the experience. In all cases, there is a strong psychosexual component associated with automotive repair and modification work. Cars have been used symbolically throughout history to represent masculinity, femininity, dominance, submission, power dynamics, social status, freedom, control, adventure, and rebellion. This symbolism often involves physical attraction towards the vehicles themselves, either literally or figuratively. The addition of aerodynamic features, body kits, performance parts, or other accessories can enhance this feeling by adding visual stimuli that excite our senses and emotions.