here is the file i am working on. The airdam is what i drew yesterday but the rest of the car was drawn by someone else.
keep in mind the air dam is still in its rough stages. i was trying to figure out the right height and general shape of everything i still need to smooth things out and add some more duct holes.
i guess really what i want to know is if you guys were going to draw something like this, how would you start, where and how would you make reference lines. I realize my resolution is a bit overkill compared to the rest of the drawing but im going to work on that too, just havent had the chance.