Aha, lists - it must be new year's eve
And by readers too, the curse of the serious journalist (almost as bad as editors...).
This is like a list published a while back of the 10 greatest books ever written, as voted by BBC viewers, or some such, in which one of the Harry Potter books was included. Well, this is surely similarly flawed. The voting implies such a limited perspective that the end result is just risible and embarrassing.
Personally I'd go with many of (both of) your suggestions (eg the Mini, the earlier Porsches 550/911s, the Mustang, the GT40, the Miura definitely, not sure which Ferrari but probably the 250GTO) but what about also the VW Beetle (iconic, but which also tops my most hated car list), the E type Jag, even the Hummer perhaps?).
