Budget, which is based in Boca Raton, Fla., is testing out a sponsored vehicle rental campaign in its major hub of Atlanta.
Twenty five of its most frequently rented cars and SUVs will be equipped with an ad and will be offered to drivers at a substantially reduced rate.
Budget customers have already taken advantage of the program. One reserved an SUV for four days, paying $88 instead of $300.
The Budget campaign is set to continue through Nov.
The Associated Press contributed to this story.