DC co-publisher Jim Lee has provided art designs for the cars, which include the Flash Forte Koup, Aquaman Rio 5-door, Cyborg Forte 5-door, and Green Lantern Soul.
The comics company agreed to the project to help raise awareness of its 'We Can Be Heroes' campaign, aimed at tackling hunger in the Horn of Africa.
"It was a thrill to see custom cars based upon my Justice League artwork and sketches revealed at SEMA," said Lee.
"I have to tip my hat to the teams at West Coast Customs, RIDES and Super Street on their innovative work creating cars that represent iconic characters like Green Lantern, Cyborg, Aquaman and The Flash - all to benefit a great cause, 'We Can Be Heroes', and I'd like to thank Kia Motors America for supporting 'We Can Be Heroes'."
Each Justice League member was assigned a Kia vehicle based on their personality and key attributes. The two companies unveiled the Batman-inspired Optima two weeks ago at New York's Time Warner Centre.