I ordered mine on 16 December 2009, Build Week (BW) 51. A year has 53 BWs. VW work on BWs. It will be at the dealership this week, BW9.
However, this car was originally ordered by another customer in June 2009.
He got fedup waiting and cancelled the order in early December 2009 which I then took up.
It was a stroke of luck.
My car was originally supposed to be built 2nd week January 2010, BW2.
However, it was delayed to BW9 and then brought forward to BW8. It was shipped in BW9. We are soon to be in BW10 which starts tomorrow 8 March. It will be at the dealership this week, BW10.
BW1 started on 4 January 2010, BW2 on 11 January and so on.
Hope you find this helpful.