FYI, as I was rummaging through some of my files, and came across two parts catalog microfiches for the AR8 Turbo (in Italian language) that I bought on eBay several years ago:
Part No. 60495179: AR8 TURBO PARTI DI RICAMBIO (MECCANICA), 1a Ed., 1-1985, Fiat Auto S.P.A. Torino, D.C. Direz.Post-Vendita.
Part No. 60495180: AR8 TURBO PARTI DI RICAMBIO (CARROZZERIA), 1a Ed., 1-1985, Fiat Auto S.P.A. Torino, D.C. Direz.Post-Vendita.
'63 2600 Touring Spider (AR 191437, the car that started the 2000/2600 International Register, reassembly in progress)
ex-'65 2600 SZ (AR 856043, now being restored in Austria)
Maintainer of a private 2600 SZ register (not the one in the Netherlands).