Being a passenger and not having to control the car would make it a lot safer to slyly pull the door handle to open it, before kicking the door outward, HARD, right into the pig in order to knock him down before taking control of the car and running the porcine piece of filth over, repeatedly, reversing over him, accelerating to top speed in top gear into his face as he tries to get up if the first attempt proves not to be fatal, before repeating the process enough times to make sure the dirty bastard is dead, and in case of there being a camera in the pig car, siphon the fuel out of their tank, all over the inside of the car, after first dragging the pig's body or unconscious pig inside,covering It in fuel from trotters to snout, and throwing in a match. Make sure the motherfucking filthy donut-munching swine burns.
Hopefully just after fatal burns are inflicted, It'll regain consciousness just long enough to experience the agony of being burnt to death.
MMmmmmmmm...roast pork and crackling. Just stuff an apple in It's big fat shitspeaking squeal-hole, and you got yourself dinner.
A.C.A.B