1701: You should tell me a maker\designer\tuner\coachbuilder and so on, who worked on a Morris Mini Minor in the '60s. Given the number, 1701, you can assume it's starting with 'A', and my clue is that is quite known.
10801: Bertone it is!
10701: ?? I already gave you that number, (FIAT 1100 COUPE VICTORIA, 1941). It's not Garavini or Pininfarina but one of the biggest ones.
1701 : Alec Issigonis ?
10701 : Allemano ?
May we continue with #100801 ?
Ciao,
1701: Not Issigonis. Starts with 'A', ends with 'R' and contains an 'X'.
10701: Not Allemano. Clue: this number is very close to your 10801 guess.......
100801:MODEL GA 5-PASSENGER GASOLINE TONNEAU, 1910