We can’t talk about the Countach without mentioning the gigantic rear spoiler. As with the fenders, the spoiler is something many people associate with the Countach that wasn’t part of the original car. It became an option in 1978, but like the fenders, many purists prefer the smooth lines of the car without the spoiler.

Still, Kimble couldn’t not include the big wing on this cutaway sketch. In fact, it’s one of the few components represented in its entirety without any cuts whatsoever. Even so, the way the wing is shaded to show curves and edges is an artistic masterpiece by itself.