In an odd development, the Vatican has decided to get itself involved in proper driving ettiquette. If you haven't taken the test, you shouldn't be too worried, some of the church's doctrine is already legislated by governments. Examples would be driving while intoxicated and reckless driving. But there are plenty of things that you won't find in a secular book of driving laws.
From The Huffington Post:
The unusual document from the Vatican's office for migrants and itinerant people also warned that automobiles can be "an occasion of sin" _ particularly when used to make a dangerous passing maneuver or when used by prostitutes and their clients.
And it suggested prayer might come in handy _ performing the sign of the cross before starting off and saying the rosary along the way. The rosary was particularly well-suited to recitation by all in the car, it said, since its "rhythm and gentle repetition does not distract the driver's attention."
Cardinal Renato Martino, who heads the office, told a news conference the Vatican felt it necessary to address the pastoral needs of motorists because driving has become such a big part of contemporary life.
Well I guess that prostitute thing is already covered in most countries, but saying the rosary is completely separated from the DMV. As for making signs, I'll stick with the finger over the cross for now. Even though I gladly sold my car last year to move to NYC, I do miss the bumper sticker I had that read "Religious People Frighten Me, Spiritual People Enlighten Me."