I know they do it with 32s, not sure about 33s though, but I know when going thru compliance they cut the wires for the two inner tail lights so only the two outers work.
Something to do with the 32 GTRS which were Australian delivered and their inner tail lights actually being indicators. On imported 32s, the indicators are actually where the reverse lights are on an Aussie delivered version.
Correct me if I'm wrong though...