Five germans in a Quattro

Five Germans in an Audi Quattro arrive at the Italian border.
The Italian Customs Officer stops them and tells them
"It'sa illegala to putta 5 people in a Quattro."
"Vot do you mean it's illegal?" asks the German driver.
"Quattro meansa four" replies the Italian official.
"Quattro is just ze name of zefokken automobile" the Germans says unbelievingly. "Look at ze dam papers: ze car is designed to karry 5 persons."
"You canta pulla thata one on me!" replies the Italian customs officer. "Quattro meansa four. You have five-a people ina your car and you are thereforea breaking the law."
The German driver replies angrily, "You idiot! Call your zupervisor over. I vant to speak to someone viz more intelligence!"
"Sorry" responds the Italian officer, "He can'ta come.
He'sa busy witha 2 guys in a Fiat Uno"