Why does a Ford Fusion have an Aston martin grill?

The Ford Fusion (and its global counterpart, the Ford Mondeo) never actually had a grill directly copied from an Aston Martin. While some might perceive a stylistic similarity in certain model years, particularly in the overall shape and the use of a prominent horizontal bar, it's not a direct copy. Both brands have their own distinct design languages, and any resemblance is likely coincidental or a result of general design trends towards similar stylistic elements within the luxury and premium car segments.