Which one has the bigger engine? Which one has the lighter body? Why aren't you trying to google tests that were done? There are several reviewers of automobiles that will have the stats on both cars. 0-60, top end speed, handling, and more. Look that up and you will have your answer. I can tell you that one is faster 0-60 and the other has a higher top end speed. Camaros statistically have a top end of 160-180 throughout their history. The weight of the car leaves 0-60 lacking and the handling is poor to fair. Challengers I dont know much about them if they are newer than 1977. I lost interest in performance cars when they started trying to make them economical.