Here are performance figures I have achieved from my GPS measurement device.

Some will argue over its accuracy but the initial time was measured against GTI Internationals 1/4 mile equipment and was very accurate.
I achieved 6.73 seconds and the chart shows a 0.5 second reaction time!

GTI International, dry, ESP off.4000revs



Dry, v.low fuel, 4.5 degrees C outside, ESP Off 4500revs lots of clutch burning smell :o( very happy but never again!