The one on the left is seventeen years older than the one on the right. The 80s weren't kind to anyone's car design
It's not often two identical Alfas get parked next to each other.
Italian cars tend to veer between absolute beauty and irredeemable homeliness. That said, they never seem to descend into the aggressive ugliness that can be found with, say, certain kinds of Porsche or Ford.
On the left, the trunk as originally designed. That's what the one Dustin Hoffman drove on the Graduate looked like. On the right, the first, and really best, revision of the body style. That's the one we drive. Literally. Upper right graphically details the third revision, and also why it's known as a "duck tail."