I don't think you will see the Audi DSG transmission in the Golf - as you say, the Audi is north-south configuration, Golf is east-west.
This means the engine torque will have to be limited to 350nm in the DSG model, since that is the published maximum for the VW box.
The Nurgurgring Sciroccos were running only 350nm, so it's doubtful VW will deliver more in a production version of the car. I read somewhere that they have fed it 550nm reliably in a couple of test mules, and there are quite a few chipped cars running more than 350 with no apparent problems.
Bookmarks