Question: what is the difference between a 65 and 66 mustang?
Answer: A 1965 Mustang will feature vertical grille bars. A 1966 Ford Mustang will feature the running horse without a vertical grille bar. ... Also, 1966 Ford Mustangs feature an instrument cluster with five circular dials, whereas non-GT 1965 Mustangs feature a Ford Falcon style instrument cluster with rectangular gauges.