The problem I have with lists is that often there are racing cars rather than just road cars. This always bugs me a bit because it's a different skill making something for the road and then maybe going racing later, rather than making something for the track and it being seen as 'the best car ever made' (I'm looking at you 250 GTO).

I once did my own list of my 50 favourite road cars with nary a race special in sight - I thought it was rather good...