After putting Bullitt on my list, i found this and find it interesting.
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Two 1968 Mustangs and two 1968 Dodge Chargers were used for the chase scene. Both Mustangs were owned by Ford Motor Company and were part of a promotional loan agreement with Warner Bros. The Mustangs engines, brakes and suspensions were highly modified for the chase by veteran car racer Max Balchowsky. The Dodge Chargers were bought outright from Glendale Dodge in Glendale, California, and were left unmodified.
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Two 1968 Mustangs and two 1968 Dodge Chargers were used for the chase scene. Both Mustangs were owned by Ford Motor Company and were part of a promotional loan agreement with Warner Bros. The Mustangs engines, brakes and suspensions were highly modified for the chase by veteran car racer Max Balchowsky. The Dodge Chargers were bought outright from Glendale Dodge in Glendale, California, and were left unmodified.