Daniel,
I know that this reply is sometime after your first post, but here is the name of a document that might help you (it sounds like you need information about both VDA and ISO):
"VDA HTS2: Quality management in the automotive industry
Means of highlighting the comparisons between the VDA 6 Teil 1, 4. Edition or
ISO/TS 16949:1999 to the ISO/TS 16949:2002"
This document does a side by side comparison with ISO 9001:200/ISO TS 16949:1999 and VDA 6.1
I hope that this will be of value to you.
Best regards,
Charlie