SZ, because, just, just quiet you!
What a beautiful hot hatch, lovely looking, obsessed with being light, a nice little engine and can carry 5 people or 2 people and things, what an excellent car, and its so niche it has to be atleast cool, but SZ because its one of the last great Peugeots before the current and previous generation (all Peugeot owners say their generation was the last good one, I'm no exception I owned a '3'06).