Hello
I don't think that you need moi or g2, g3 or g×√π for vehicle design. You need insperation and a pencil and a sheet of paper.
Ok, Maybe, You need also a black turtleneck sweater, glasses with a thick spectacle frame - especially if you don't have problems with your eyes(simple float glass), some cool apple gadgets, a Artemide Tizio on your desktop and a showcase with some old Braun products;-)

Kind regards
Karsten
p.s: Am I redirected? Or is this really the moi M O i - Forum???