Solved -PJ586- You were ready for that!

[pguillem]

1901: 6C 1750 GRAN SPORT SERIE V COUPE-SPIDER AERODINAMICO ZAGATO, 1931
10901: ALFA ROMEO GT 1300 JUNIOR, 1969
100901: MODEL GE GASOLINE 5-PASSENGER TOURING, 1911

1901 : it should be Alfa Romeo, but I just fin a 8C 2300 aerodinamico Zagato. Strange
10901 : Zagato ?
100901 : may I have a hint ?
Thanks

[Paul Jaray]

1901: 6C 1750 GRAN SPORT SERIE V COUPE-SPIDER AERODINAMICO ZAGATO, 1931
10901: ALFA ROMEO GT 1300 JUNIOR, 1969
100901: MODEL GE GASOLINE 5-PASSENGER TOURING, 1911

1901 : it should be Alfa Romeo, but I just fin a 8C 2300 aerodinamico Zagato. Strange
10901 : Zagato ?
100901 : may I have a hint ?
Thanks

1901: Alfa Romeo is correct.
10901: 10.701 and 10.801 were Bertone...Zagato is around 103.300. I have more than 400 cars under Bertone and given the fact that I'm updating my list daily, they seem to be even more...but that's another Bertone!
100.901: Very, very close to your 100.801: White (2)!

[Paul Jaray]

Now, faksta told me he can't keep playing anymore and we can call it solved!
Have you got one last number?

[Wendax]

My last number is 73127

[Paul Jaray]

TYPE O, 1905 circa

[Wendax]

TYPE O, 1905 circa

What a nice way to finish this puzzle (hopefully) with a car of one of the finest makers: Panhard.

[Paul Jaray]

Yes!
Thank you all for playing!

[pguillem]

Yes!
Thank you all for playing!

You probably have the most complete encyclopedia.  Grazie Mille !