The pope goes to America and gets picked up at the airport by a Cadillac Limo with the windows blacked out. After a while, the driver hears a rapping on the glass partition and winds it down.

'You know, since I was a little boy I've always dreamt of driving a Caddy,' says the pope.

Not wanting to refuse a request by God's representative on Earth, the driver pulls over and they swap places.

The pope has a wonderful time screaming down the freeway at 100mph, but it's not long before blue lights pull the car over. The policeman has words, then returns to his vehicle and gets on the radio.

'Dispatch - you better get me the chief' he whispers.

'Roger that.'

A pause.

'Chief here. What's up?'

'I've just pulled somebody over and I think they're quite important and I don't know what to do,' whispers the policeman.

'You haven't pulled over the mayor again have you?'

'No, I think they're more important than the mayor.'

'The governor?'

'No, I think they're more important than the governor.'

'Oh my god! You haven't pulled over the president have you?'

'No, I think they're more important than the president.'

'WHAT? How can anyone possibly be more important than the president of the United States?'

'I dunno, but he's got the pope as a chauffeur...'