The fun thing about this build is that I know what the enveloppe will look like and it's limitations in space (height, width, lenght and curves). Everything else is speculations and up to my spur of the moment whim. So today I decided to create the fuel tank based on the only known parameter for the tank, I know where the fuel filler caps are (yes, they are 2). Then it was just a question of giving the tank a somewhat plausible shape that would fit in the general area dictated by the caps. The location in just dehind the rear seat and above the 2 differentiels, just under the trunk lid, a pretty standard spot. But the area is quite small since the spare tire seems to be located just under the trunk lid. I'm using the tank as a spare tire holder, this gave the tank a rather nice shape. But it will be a small tank so this v16 will definatly not be winning any mileage contest.