...sorry for beeing late with my response but i think i can help here quite good - the white GT1 in the pic weīre talking about is a PAG car and thereīs only ONE in existence, itīs a 996GT1 - if u like - "pre-production" model with a metal-sheet structure, unlike the at least 20 1998 GT1īs with a full carbon fibre body for the homologation, nevertheless the white car has a EG-registration ( no individual reg. ) just like the 1998 GT1s so a regular car - i think i have a video of it around, will post it when i found it...
hope that helps a bit...
