Communication and involvement between the designers in Stuttgart and Brackley is crucial, in order to bounce feedback off each other, see what is feasible and what is not - because the motorsport and production car worlds are very different.
"The biggest challenges are shape and proportion," admits Sam. "Michael and his team deal with the overall shape and design of the car livery, then from there we figure out the details and the finer points.
"Obviously, when we initially start the design, we're using a current chassis - which is one-year out of date by the time the final livery goes on. So, there is always room for us to amend the design after approval, to be able to properly fit the form and shape on the new car."
Alongside shape and proportion, one of the toughest parts of the process - for Sam - is doing designs that fans never get to see out on track. A lot of effort goes into other design directions, but only one will come to fruition.