mmmmm, have the "hero" character be an young and single (or older and freshly divorced) Afganistan or Iraq vet who bought the car with the money he earned in the war zone and goes into the desert to get away and blow off steam, then just replace the hippies with Jay and Silent Bob (or wanna-be's), maybe add in a nutcase that like to run around in his underwear and wear armadillo shell hats to keep the thought police from getting him...................................hey, it almost writes it self
Could always throw in a few Crown Vics and Impala cruisers to get their rears handed to them by the Challenger, maybe even have an older Mustang or Camaro pursuit car to make things interesting.