With help from my friend Mr. Wiki, I have opened the world of 4 circle venn diagrams! Hopefully this one can't create any arguments:
So I might be cheating a little bit with the Renault/Lotus category, but I think it's allowed since they've changed the name this year!
EDIT: Oh balls, just realised I missed a couple of categories... await an update!
EDIT 2: One out of two fixed, can't find an answer for the remaining category (see below).