Interesting thread, nice to have some non-US perspectives. I've read that diesel-powered autos will soon, if not already, be outselling gasline cars in Europe. Might note that diesel-powered Audi P1 cars have won the last two 24 hours of Le Mans in part because of the better mileage, even at 180 mph.
The SMART car, diesel or not, is not for me. I drive mostly highway miles and no way am I winning the laws of physics battle between me and a Freightliner in that car. Might have a chance in my Volvo (I do get 28 mpg in that car).
One thing that separates Europeans and North Americans is the understanding of distance. I lived in Paris (France) for a while and it struck me that Parisians had no idea how big the USA is. I could drive from one end of France to the other in about the same amount of time it would take me to drive from Philly to South Bend. I think that distance does color the way we look at the cars we drive. In Paris I would walk to my office in about 20 minutes. I've never had a job in the US where I could drive to my office in 20 minutes. We're big and spread out and except for those few folks, relativelty speaking, who live in cities with public transport, we all drive, probably everyday. That's not as true in Europe, at least from my limited experience.
SMART cars, great idea in the right situation, just don't fit my requirements.
_________________________
In a crisis one does not rise to one's level of expectations but rather falls to one's level of training.