GRAYCIE is a 1969 Lincoln Continental Mark iii.
In an obvious nod to The Blue Brothers parallels, Josh Willis' character is named "Jake Elwood".
Ted Reis' character was modeled after "King George" from the 1973 Blaxploitation movie "Coffy", starring Pam Grier. His last name in Wall of Flesh is "DuQui", the same last name of actor Robert DuQui who played "King George".
Shamar Philippe's character is named "Riley King". Riley King was B.B. King's real name.
Aspect Ratio: 2.76:1 (~11:4): Ultra Panavision 70/MGM Camera 65 (65 mm with 1.25× anamorphic squeeze). An uncommon aspect ratio used in film, especially for comedy. Some of the few films using this ratio are: Ben-Hur (1959), How the West Was Won (1962), and It's a Mad, Mad, Mad, Mad World (1963).