Thanks to Centro Documentazione Alfa Romeo, I could update some information on 3 yet unverified limited editions:
Elegant Limited Edition 2002 (GTV)
414/B Azzurro Nuvola
163.530.0.0 – GTV 2.0 TS 16V E3 ELEGANT LIMITED EDITION 2002
440 Black Leather
Sport Limited Edition 2002 (GTV)
167/A Rosso Miro Pearl.
163.580.0.0 – GTV 2.0 TS 16V E3 SPORT LIMITED EDITION 2002
489 Glossy Black Leather
Elegant Limited Edition 2002 (Spider)
427B Blue Lightning
163.331.0.0 – SPIDER 3.0 V6 24V 6M E3 ELEGANT LIMITED EDITION 2002
493 Lys Grey Leather
Elegant Limited Edition 2002 (GTV)
It seams that there were none of this versions ever produced and no records what so ever.
163.531.0.0 – GTV 3.0 V6 24V 6M E3 ELEGANT LIMITED EDITION 2002