It is designed to decode Audi VINs as per the global ISO 3779 standard.
It does NOT fully decode VINs for cars exported to the USA.
As always - the quality of results are proportional to any feedback I receive, so if you spot a clanger then please don't hesitate to Email me !
LATEST UPDATE - The VIN decoder has been completely rewritten and it works again - thanks entirely to Andy Burton (aka 'Sonic' on the S2 Forum) for his efforts there.
A fantastic effort that is much appreciated. In time, I have further updated the VIN decoder Javascript with support for some additional vehicles with unusual VINs such as the RS2. I could still use some help with ongoing confusion on the many 80/90 variants and the special VIN for Quattro GMBH vehicles.