Psychological cars are automobiles that have been designed to trigger psychological responses from their drivers and passengers. The concept was introduced in the late 1980s by psychologist Dr. David H. Schofield, who believed that humans can be manipulated into having strong emotional reactions through visual cues. He suggested that if people were shown images of sexy women or handsome men while they drove their cars, then they would feel more attracted to each other. This theory has since become known as the "car sex effect."

Many studies have been conducted on this phenomenon. One study found that when subjects viewed pictures of an attractive man or woman while driving their car, they experienced an increase in arousal levels. Another study showed that when subjects saw pictures of a person who resembled them, they felt more attracted to him/her than someone who did not. Still another study indicated that viewing images of animals increased sexual attraction levels among participants. All these findings suggest that there is some validity to the idea behind psychological cars.

Researchers believe that there may also be some drawbacks associated with using psychological cars for sexual purposes. Some experts argue that it could lead to dangerous situations such as road rage or aggressive behavior. Others warn against the potential for objectification and exploitation of others. In addition, some worry about the ethical implications of using technology to manipulate human emotions in such a way.

Many automakers continue to incorporate features designed specifically to stimulate sexual desire in their vehicles.

BMW recently unveiled its new i3 electric vehicle with an optional feature called "iDrive," which allows drivers to control the temperature and music settings from inside the car. The company claims that this will help create a "passionate experience" for passengers. Other manufacturers have introduced similar features, such as Mercedes-Benz's "Love Seat" option or Volvo's "Sensual Experience."

It remains unclear whether psychological cars can truly improve relationships between couples. But it seems clear that companies are increasingly interested in exploring ways to tap into our innate desires and turn them into profits. So if you want your next car to make you feel sexy, don't forget to ask questions!