Joke: Italian border patrol

This joke seemed appropriate because it features cars and Italy...

At the Italian border:

Five Germans in an Audi Quattro arrive at the Italian border.

The Italian borderpartrol stops them and says:
-'It's illegal to seat five people in a Quattro.'

-'What do you mean, illegal?!', the the astonished German driver asks.

-'Quattro means four', says the Italian border patrol officer.

-'Quattro is the name of the car', the German driver replies.
'Here, just have a look at the papers. This car is developed to accomodate five people.'

-'This isn't my fault', says the officer. 'Quattro means four and you have five people in your car, so you're breaking the law!'

-The German gets aggravated and shouts, 'You idiot, get your supervisor, I want to speak with somebody more intelligent then you!'

-'Sorry', the Italian officer replies, 'that's not possible. He's currently busy giving a fine to two people in a Fiat Uno.'