Funny that you mention that, I have an E92M3 and I love it BUT....
I was going to do the following: I have this blueprint from Porsche and was going to measure my 911sc and make and exact painting to scale on my wall next to the 911 "The side view" with all of the specifics in the blueprint. I didn't do it because I am out of space in the garage and would like to have the entire wall visible i.e. Vespa's...
So this is what I was going to do..