Hi Z ppl. I thought it was fairly common knowledge, that Porsche insist on using a full tank of fuel but most other manufacturer's use 1/4 tank. If you read the mags (not just the Porsche ones), like evo, the mags almost always get better 0-60 times than quoted by Porsche, sometimes by quite a bit, like 0.5 or 1s, and often state surprise at this, for that reason, I know it's a retarded way to test a car but it is true. And Japanese test drivers are clearly lighter than Germans as they have less facial hair.
I've just done that annoying thing where you make one serious point, followed by a joke, and then the joke ruins the serious point!