[Explorer0863]

The first page of this document tells you about the difference between NAS models between 87 and 95. I know that it doesn't compare it with the European models, but it may have some value to you. The VIN will tell you everything. Good luck!
http://www.roverparts.com/Parts_Catalogs/Range_Rover_Classic_Parts_Catalog/pdf/RRC8_Full.pdf