That 2nd one you posted I get an average of 7.9 secs, but he's clearly getting bags of wheels spin and you still can't confirm when it's rolling as I said earlier in this thread the speedo starts moving after the car is rolling. You can post Youtube links forever and a day but they are are hugely inaccurate way of timing 0-60mph runs. You have to use proper timing gear otherwise there's too much % error.
nick
