We continue our tutorial with the wheels of our Porsche 911 car, but before we proceed with the next steps, I’d like to shine the spotlight on the famous Fuchs wheels that were designed in the shape of a cloverleaf (or a wing). First, a bit of history: “The Fuchs wheel is a specialty wheel made for the first Porsche 911/911S model in the early 1960's. Designed in conjunction with Otto Fuchs KG, Porsche modeler Heinrich Klie, and Ferdinand Porsche Jr.

https://www.smashingmagazine.com/2020/08/porsche-911-sketch-tutorial-part-3/