I guess what would make it difficult for "normal" people to do these tests at this time is that the car was just released and many people probably haven't gotten their babys out of the break-in phase.
I am kind of surprised I haven't seen anything form official sources.
Everyone magazine just says "manufacturer quotes times of 5.3..."
Stop quoting and take the damn car for a test drive already. Isnt anyone interested in the new engine performancee