Hawkes car is actually a 73-74 Nova, Not a 68-72. The front end was converted for a more well known style.
Carl and Deborah Neville are played by real life husband and wife Robyn Lively and Bart Johnson, the latter of whom is the brother of one of the film's producers, Brad Johnson.
8 minutes into the director's commentary, Eshom Nelms and Ian Nelms talk about "car porn", how beautiful and powerful the Nova was, and that it was a real quarter track car.
Robert Forster also acted in a similarly titled film that also came out in 2017 entitled Small Crimes (2017).