THE NERD. Most likely to be holding the GPS and probably the only one who knows what a spark plug does

THE HIPSTER. Most likely to be non-stop talking, and the only one who knows how to reach Sparky the plug.

THE ACTIVIST. Most likely to be behind the wheel, and the only one who knows a spark plug breaks a car window.

THE PUNK. Most likely to be flipping off that asshole in the other lane, and the only one with SPRK PLUG tattooed on your knuckles.