Edward Dean Jeffries was an American custom car designer and fabricator, as well as stuntman and stunt coordinator for motion pictures and television programs based in Los Angeles, California.

A custom car is a passenger vehicle that has been altered to either improve its performance, change its aesthetics, or a combination of both. Some automotive enthusiasts in the United States want to push "styling and performance a step beyond the showroom floor - to truly craft an automobile of one's own." A custom car in British according to Collins English Dictionary is built to the buyer's own specifications.