Commissioned by ​Hyundai Motor U.K., a study on whether men or women is the angrier sex when behind the wheel has sprung out a surprise answer.

Conducted on 1,000 British drivers, the results showed that women tend to more angry than men by 12 percent on average.

Behavioral psychologist, Patrick Fagan from Goldsmiths University London explained that "evolutionary theory suggests that the early female ancestors had develop an strong sense of danger for anything that threatened them and their young while the men were out hunting. That 'early warning system' instinct is still relevant today, and women drivers tend to be more sensitive to negative stimuli, hence getting angry quicker than men".

On the other hand, happiness is the other dominant emotion that make both men and women whey they are on the road. Other than driving on an empty road which 84 percent of the them admitted to being happy about, music is said to be another key feature in keep spirits up. 54 percent of subjects said that singing makes them happy.

Making use of the data from the study, Hyundai and Patrick Fagan have come up with the world's first Driving Emotion Test (DET). The test includes eye tracking analysis, facial coding, galvanic skin response, and a heart rate monitor to record "how specific stimuli impact our emotions when we're driving" to provide subjects with a unique DET score.