I am posting here because I don't want to make a thread just to ask a question, and this seems like a great place to link it with.
I recall an image on here that compared (I believe Porsches) vehicles with different modifications, and how they affected drag. I know I saved it, but since I have 400+ subscriptions, that wasn't as handy as I thought. lol
I did try searching, but I did not find anything. If anyone recalls this, or knows it's location, please post it here
Edit:
To clarify, this was the same vehicle w/ modifications done and the effect of each one, as in Cd as normal, w/ air dam, w/ splitter, w/underbody, w/two things, so on.