No, Europe's roads & geography are very different.
Most Europeans drive these micro-cars not so much because they are eco-conscious, or find them as safe or comfortable. They do so because most older European cities were laid out centuries before automobiles were conceived, and simply are not navigable in anything larger than an ox cart. The farther you get away from large city centers, the larger the cars you see on the highway get.
Also, diesel usage is far more common in passenger cars and the air quality in most major European cities is atrocious compared to America. The primary cause is the high fuel taxes that make mandating the emission controls that add weight and affect mileage that the US does politically impossible.
