The adult-oriented stop-motion cartoon Robot Chicken has featured sketches parodying TRON. The first sketch is called "Used Car Surprise" (according to ADD TV) as well as "Sweet Ride", according to Adult Swim's streaming video title. It is about a teen that test drives a light cycle.
The sketch is from episode no. 33, "Metal Militia", from the second season of Robot Chicken.
The video can be viewed in its entirety here.
Caution: Offensive content - Viewer discretion is advised.
Robot Chicken featured another sketch parodying TRON called "Nerd Tron". It is about how a nerd fares in the TRON Universe.
The sketch is from episode no. 90, "Catch Me If You Kangaroo Jack", from the fifth season of Robot Chicken.