Rental Car
Rental Car
[A Cueball-like guy standing behind a desk looking at a computer screen services Megan and Cueball on the other side of the desk.] Guy: We have two rental cars left. Guy: One is the murder car. But don't let the name scare you! Guy: It's definitely haunted. But most drivers don't get murdered. Guy: Maybe one in six.
[The guy lifts his hand and looks at Megan and Cueball.] Guy: The other is a regular sedan. Guy: But it has a GPS that's stuck trying to navigate to Seattle, and you can’t turn it off. Megan: ...I can ignore it, right? That's fine.
[In a frame-less panel Megan and Cueball drive in the sedan.] GPS: Turn left GPS: Recalculating GPS: Make a U-turn GPS: Recalculating GPS: Turn right GPS: Make a U-turn GPS: Recalculating
[Megan and Cueball walk back into the agency with the guy behind his desk. Megan holds out the car keys in one hand.] Guy: Back already? Megan: We'll take the murder car. Guy: Popular choice.

In this comic the couple Megan and Cueball want to rent a car. The Cueball-like guy from the car rental agency tells them they only have two vehicles available:
Megan believes she can ignore this and accepts the less lethal car. The comic suggests that driving with a GPS that tries to guide you to a different destination than that which you wish to visit—so it is always recalculating and asking you to do U-turns—is incredibly annoying. So annoying that given the choice between the persistent low-level annoyance of the GPS on one hand, and the ("low") probability of being murdered on the other, most people will choose the latter option. After all, they might survive murderous ghosts but they feel they will not survive long having to listen to the broken GPS.
According to the title text, the murderous ghosts haunt both cars, but as soon as the car starts driving and the GPS begins to drone on, even the ghost cannot stand listening to the broken GPS and stops possessing it.
Apart from the joke about GPS, this is also a subtle joke on the horrible cars one might get at a car rental service.
It is also possible that the car rental service is trying to drive people away from the haunted car, which we can assume is just a normal car, to get more profit when people come back and take the "haunted" car when their GPS is broken.
[A Cueball-like guy standing behind a desk looking at a computer screen services Megan and Cueball on the other side of the desk.] Guy: We have two rental cars left. Guy: One is the murder car. But don't let the name scare you! Guy: It's definitely haunted. But most drivers don't get murdered. Guy: Maybe one in six.
[The guy lifts his hand and looks at Megan and Cueball.] Guy: The other is a regular sedan. Guy: But it has a GPS that's stuck trying to navigate to Seattle, and you can’t turn it off. Megan: ...I can ignore it, right? That's fine.
[In a frame-less panel Megan and Cueball drive in the sedan.] GPS: Turn left GPS: Recalculating GPS: Make a U-turn GPS: Recalculating GPS: Turn right GPS: Make a U-turn GPS: Recalculating
[Megan and Cueball walk back into the agency with the guy behind his desk. Megan holds out the car keys in one hand.] Guy: Back already? Megan: We'll take the murder car. Guy: Popular choice.
