If the VIN model year system is the same world wide, and I think it is, you can tell by the 10th digit.
model year 2002 is a K2 with a 10th digit of 2
model year 2003 is a K3 with a 10th digit of 3
model year 2004 is a K4 with a 10th digit of 4
model year 2005 is a K5 with a 10th digit of 5
model year 2006 is a K6 with a 10th digit of 6
model year 2007 is a K7 with a 10th digit of 7
model year 2008 is a K8 with a 10th digit of 8
model year 2009 is a K9 with a 10th digit of 9
model year 2010 is an L0 with a 10th digit of A
model year 2011 is an L1 with a 10th digit of B
model year 2012 is an L2 with a 10th digit of C
model year 2013 is an L3 with a 10th digit of D