If I'm not mistaken, in Criminal Law (1988) starring Gary Oldman and Kevin Bacon, there is a scene after he get's Kevin off the hook where he gets drunk and gets dropped-off at a doorstep by someone at night driving a Milano - you only get a fleeting moment. ...The rest of the movie he's putzing around in a Saab 900 convert (womans car).
The only other movie I remember seeing a Milano in is the 1998 HBO movie "Excellent Cadavers". A movie about Giovanni Falcone, an Italian Magistrate who gets blown away by a humongous IED in Sicily. He was putting away a bunch of Cosa Nostra boys...