If it is a fancier dealership job, I'd wear a dress shirt, pants and shoes, otherwise well worn but clean coveralls and boots to show how you would fit in with the other employees. This also helps if the employer asks you to show your knowledge on a car then and there. You don't want to look out of place so I would avoid a suit jacket, but definitely shave.
You do not want to look like a hobo.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.