2010 Mustang GT should be able to spank a Stage 2 GTI off the line. From a roll, there is no way a stage 2 GTI on octane 93 will pull on it. (METH/oct 100 is a different story)
I have raced my bro's 2005 Mustang GT Auto Trany (stock/ 300hp & 320ft-lbs) with a few small mods (suspension, intake, axle back) at Stage 1 and Stage 2 multiple times. Stage 2, or downpipe, basically has enabled me to stay neck to neck with it at highway speeds (40+).
On the strip, my GTI had no chance. Both cars are autos. With the GT, there is no drama off the line, you will feel that raw power/acceleration (as a passenger) compared to the fwd. Both cars trap about the same, while the GT will run mid 13's.
Btw...that "Stage 2 vs GT" video is useless.
You do realize those are crank numbers he was probably making less than a manual GT to the wheels
I dont see why a S2 GTi cant pull on a 2010 GT (from a roll) the thing ways 500+ pounds more than the GTI ....If it was a 5.0 I would completely agree