What are those 6 extra studs for in 42000 Grand Prix racer? I recently purchased a set, Technic 42000 Grand Prix Racer, that I am very happy with. However, I am perplexed by the fact that the set came with 6 extra transparent 1x1 round plates (studs).

As you can see, this was clearly not a mistake, as they are shown in the instruction manual. So my question is, does anyone know what these are for? My guess was that perhaps the Designer is signing his/her name to the set in a quirky way. Can anyone explain?
Sariel's assembly video shows that he ends up not using those 6 studs for the car assembly

but wait! if you scroll down into the comments:



he explains that the pieces are used for the B-model: