I've always had somewhat of a weak spot for tiny cars, whether in Japan or in Switzerland.
It makes sense that the narrower the streets, the smaller the cars... But among Mini Coopers, Smart cars and other miniature vehicles, the Fiat "Cinquecento" is my all-time favorite!
The older models from back in the day seem to be smallest, so I am always surprised how people can actually fit in them! Needless to say, my camera never misses these cute and colorful cars on the streets of Switzerland... Don't they just vibrate a sense of "dolce vita"?