In terms of what cars the filmmakers used, they preferred convertibles as they were easier for sound and lighting purposes.
Prints issued at drive-ins in New York carried the advertising title "Egyptian Blood Feast", though the title card remains the same.
Producer David F. Friedman came up with some very effective publicity stunts for "Blood Feast" which included giving theater goers vomit bags reading "You may need this when you see 'Blood Feast'" and obtaining an injunction against the film in Sarasota, Florida, which of course only generated more interest in the film.
The actor originally cast as the police captain did not show up for filming, and Scott H. Hall, a talker for the Ringling Brothers sideshow who had also worked for the Billard Brothers circus in '48 and '49 with "Blood Feast" producer David F. Friedman, stepped into the role. He'd originally been hired for the project in various other capacities.
This was the oldest film on the UK DPP 72 list of official video nasties.
Was filmed in Miami in only nine days and cost just under $25,000 (some sources say $60,000) and earned back millions for its creator and associates.