My Scirocco has the same engine as the GTD. Nope, no changes in engines since launch (maybe VW got it right 1st time
).
They did change the instrument cluster in 2010 IIRC which gives the option to do needle sweep, digital speedo, DRL's on / off (all activated through Vag Com).
DSG is a matter of taste, some like it some don't (not turning this into a Manual vs DSG againnnnnn). I went manual because i keep reading too much in Honest John's column in the Telegraph Motoring about DSG problems (even on new DSG's) so for me its not quite reliable enough
that's excluding the problems a few people have had on the forum.
As covered in the other GTD threads that have been around in the last couple of months, they are pretty reliable (no major failures or weaknesses) and will remap up to 210bhp Stage 1, 220+bhp at stage 2 (DPF removed) - and be quicker than a Stage 1 TSI Golf (according to everybodys favourite mainstream tuner
)
Hope that helps