Hi antp, there's a mistake on the site. In the US, the Passat got a facelift for the 2002 model year, but all of them are listed as 2001 on the site. There are hundreds that need to be fixed:

http://www.imcdb.org/vehicles.php?resultsStyle=asImages&yearFrom=2001&yearTo=200- 1&makeMatch=2&make=Volkswagen&modelMatch=1&model=Passat&modelInclModel=on&modelInclChassis=- on&mk=&origin=&madein=&madefor=USA&role=&page=1

http://www.imcdb.org/vehicles.php?resultsStyle=asImages&yearFrom=2001&yearTo=200- 1&makeMatch=2&make=&modelMatch=1&model=Passat&modelInclModel=on&modelInclChassis=- on&mk=&origin=&madein=&madefor=CDN&role=

There are some included above which are actually 2001 models (by plate). This includes the first 2 entries in the first link, and possibly others.

EDIT: it seems I was wrong