This picture from Endurance-Info of the Murphy car is interesting.
On the left side (of the picture) you have the normal Oreca 03 bodywork. But on the right side you have the Oreca 03R bodywork. It appears that the 03R bodywork must be placed on top of the 03 bodywork. Behind the front you can see the other front fender, which still needs to be put on.
This also explains why the headlights are so far back into the fender of the 03R.
Pretty interesting.