Hi Richard - from the old Registry, here's your submitted entry:
http://928oc.org/oldregistry/1987-92...928S4-2360.htm
Here's the same car in the new Registry:
http://928registry.928oc.org/registr...28-s4-u-s-2300
Note - the last four of the VIN are not the same as the production number, and the new Registry is sorted by production number.
Using the last four digits of the VIN and referring to the master VIN list, I think your car was: WP0JB0925HS862360
Hope this helps!
Take care,
Jarrod