Turboladner

Hello there. I am asking, if the Impreza Turbo (99/00) in the UK, had the same EG Registration number, as the rest of europe. Mine has the following one: e13*70/156-98/14*0026 It's about the RB5 wing, if the impreza Turbo 2000 or Impreza GT have exactly this number, when they were imported back then, i could mount the wing as an oem piece and it's legal in my country. (Switzerland) I'd be very happy, when someone could help me out, send me some documents or a contact, where i can ask for this EG-Number. Thanks for the help already... Dario Ladner