Did ghostbusters use any custom cars in production?

The production of Ghostbusters is widely known for its iconic vehicle, the Ecto‑1. The car is a 1971 Dodge Charger that was repainted and given a distinctive paint job to make it stand out. However, the extent to which the vehicle was customized beyond its paint and exterior modifications has not been confirmed by reliable sources. Without documented evidence, it is safest to state that the Ecto‑1 was a modified Dodge Charger, but the degree of custom work remains uncertain.