Over the years,efforts have been made to study stress as a potential human psychological aspects that possibly effect the routine life of people in different ways.There still exists a wide gap for such behavioral studies in developing countries like Pakistan.This study is an effort to bridge that gap by considering the perceived stress and its possible effects on driving performance of car drivers.An online questionnaire survey was conducted using the Perceived Stress Scale（PSS-10）and Driver Stress Inventory（DSI）as a self-administered study for a sample size of n= 223.The impact of stress on five dimensions of modified version of DSI（aggression,dislike of driving,hazard monitoring,proneness to fatigue and thrill seeking）,according to Pakistani drivers was evaluated by CFA.Age and income of the respondents were taken into account as potential influencers of perceived stress.The results have shown stress to be a potential cause of eliciting negative impact on driving performance which happens to be consistent with the previous researches in this field.People with high stress levels scored high on the sub scales of DSI specifically for dislike of driving.Also,high dislike of driving in driving was linked to more attention towards hazard monitoring while driving i-e drivers tend to be more cautious while driving.Drivers from the middle age group came out to be less likely to control the hazards on the street as compared to the drivers of younger age.Furthermore,participants with more household income had significantly less hazard monitoring score than those earning less income.Future work can consider a bigger sample size for further validation of both PSS and DSI.