For us the Alfa Sud Sprint was the "wow" car of the late 70s.
The Rover SD1
The TR7
More recently, there is little, although the first series Ford Focus made me look at it, unlike a Golf.
Now, we have 3 cars, 2 make me go "wow" and two make Caroline go "wow". We agree about the Plus 8. After 5 years I still find myself looking at her in the garage, and smiling.