A priest and a rabbi operated a church and a synagogue across the street from each other.
Since their schedules intertwined, they decided to go in together to buy a car.
So they did.
They drove it home and parked it in the street between their establishments.
A few minutes later, the rabbi looked out and saw the priest sprinkling water on their new car.
It didn't need a wash, so he ran out and asked the priest what he was doing.
"I'm blessing it" the priest replied.
The rabbi replied "Oh," then he ran back into the synagogue.
He reappeared a few minutes later with a hack saw, ran to the car and cut off the last 2 inches of the tailpipe.