I remember reading the background on the chase. The Mustang, thanks to its Falcon roots, was a sum***** to keep in shape due to the rigors of the chase. The Charger, built when Chrysler still had a few engineers on staff, held up much better. Also the 440 Charger R/T had little problem running away from the Mustang 390.

I bet that if the chase was rerun today with 2008 iterations of these vehicles, the result would be the same.