they are 15x8 ET30. reason for the moderate offset was to allow them to fit the Mk1 VWs. they are pretty flush without spacers on a mk2. that picture i posted is no spacers. but a 10 or 15 out back would push them out nicely.
these wheels are made by a company 1552 Design. they are far stronger than the OEM VW wheels as well. the Factory “snowflake” wheel was a late mk1, early mk2 wheel and was a 14x6.