This movie, filmed in the US features a sport scar that defies identification (by me at least).

In the dialog they mention "a 12 cylinder Panther" which can pretty safely be ignored.

It's RHD, so presumably of UK origin but has no external badgework or trim that might give a clue, body is smooth and rather Delage or Delahaye in style, especially the rear sweep down.

It's quite a long wheelbase so not an MG, maybe a rebodied Jaguar SS ?

Any suggestions welcome

I can't find any stills in Google Images.