Car parked outside the McCann's apartment

[misty]

I have had my friend look at the image and without being prompted she said Nissan Micra.
All the Fiat had different shaped tail lights.

  in the Gold colour.

or

Yes, I think you're right, circa 2006 Micra. I'm not sure it has any relevance, though, as it took the witness several years from making her statement to the PJ to remembering about the speeding car.