In the movie "Cars 2", there is a priest, which means car Jesus died for the sins of the cars.
Cars Jesus
Explanation
Explain Bear
Listen here, dummy. It's like this: there's a movie called "Cars 2" and someone noticed there's a priest car, right? So, the joke is that if there's a priest, there must be a car Jesus who died for all the car's sins, just like in the Bible, you uncultured swine! You know, because you smell like old gym socks.