Thats very enlightening. Thank you. As I said I'm new to the car models and I feel I've come to the right place to learn.
You're right the sharpie does end up being streaky and doesn't fit into the incredibly small holes needed, such as the grill or vents. However, it does give a shine or gloss texture that I haven't seen from anything else.
But again thank you for the response.
-Chris