Island off the coast of Italy, in the Bay of Naples, that gave its name to a Ford model (5)
I believe the answer is:
capri
(Other definitions for capri that I've seen before include "Romantic and expensive island in Bay of Naples" , "Romantic Isle in Bay of Naples" , "Old Ford model - Italian island" , "found in Tyrrhenian location" , "Island in the Gulf of Naples" .)