The very first race shows that from a slow roll, the GT-R will have the advantage. Although the M6 does make up ground showing it pulls harder up top the race is very close with the GT-R edging the M6 which is forced to try to run it down. From a stop, this would have been ugly.
The other two races are higher speed rolls and these favor the M6. The M6 does not run away easily as previously seen but in one of the runs where it gets a jump it continues to increase its distance. The GT-R is simply not able to catch or close distance against the car up top.
So, this is a better video that better shows the cars respective strengths. The M6 is a highway monster whereas the GT-R excels more from lower speed situations where its all wheel drive and short gearing pay dividends. It would be interesting to see how a 2013 GTR which traps a little bit more mile per hour in the 1/4 mile than the 2012 model would fair against the M6. A wash? Maybe. This certainly isn't the end of the debate.