Matthew McConaughey is an actor who appears in the Season Eighteen episode, "Handicar", where he drives and simultaneously advertizes the Handicar and ZipCar vehicles, satirizing his actual commercials for Lincoln's MK series of vehicles.
Matthew McConaughey first appears driving a Handicar, saying that he "was driving a Handicar way before [he] got paid to drive one" and that he "just likes how it feels". However, later when he's competing in Wacky Races, McConaughey appears driving a Zipcar, saying, just like with the Handicar, that he "was driving a ZipCar way before [he] got paid to drive one". At the end of the race, McConaughey tries to catch up to Timmy's Handicar, which is in the lead; however, explosives that were set by Mimsy, which were intended for Timmy's Handicar, were actually set under McConaughey's Zipcar. This happens because Mimsy mistook the "fake, soft-spoken douchebag that everyone loves" to be McConaughey, rather than Timmy, which angers Nathan. The explosives go off, ripping open a wormhole that sucks McConaughey in, allowing Timmy to win the race.
Matthew McConaughey has combed brown hair and wears a black business suit, which includes a black coat, a white shirt, and a black tie.