Try looking on the crossmember in front of the drivers seat, but on a 2000year car it may be elsewhere!
There should also be a plate on the bulkhead.

Look here to get an idea of the range of numbers around year 2000 - D108xxx?

https://fusiontables.google.com/DataSource?snapid=S200232KJ39


DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4