I personally like the way the Fabrizio scene the way they showed it. I loved how he was killed in the same way he killed Apollonia. However, it was a risk that Fabrizio would not be killed instantly and thereby NOT know that it was Mike's revenge.
I think Coppola must have had the same feeling since he allowed Fabrizio to crawl out of the burning car alive . . . just enough time to figure out what happened, and why.
