These are very cool Alfa's. There is also a convertible (or Spyder) version, called the Alfa RZ. It is based on the Alfa 75 (MILANO) V6. Check out this site for the register: http://home.wxs.nl/~evdbeek/monster.html
I love the SZ. It reminds me that in 1992 I passed that car on my way to campus on the road in LA Brentwood area (San Vicente Blvd I think). Too bad I didn't look at the license plates. I guess it was on tourist visa. Looks awesome in daylight