Why did the good transformers chose to copy luxury vehicles?

During the time of war/conflict, the evil transformers wisely imitated the war machines but for the good ones they found sports cars and trucks more suitable for fighting and decided to call themselves autobots in the process. |||did you ever watch the original shows? they were always called the autobots and they were good looking cars all the time. the autobots were protectors, so they decided to blend into the human world and be there to help protect. |||they did that cuz they were closest to those cars and they own