Rome has announced that it will start a trial to run 200 of its public buses on a B20 biodiesel blend. The move is designed to reduce greenhouse gas emissions and improve air quality. The plan will look carefully at the carbon emissions of the supply chain as well.
I met a guy at the Motor Trend Community Forum who recently took a trip to Rome. While he was there, he took many pictures, and many of them were in an attempt to find the smallest cars in Rome that people actually drive. Look at the Gallery, you will see some classics like the Fiat 500, and some not-so-classics... like, well, I have no idea what some of them are. But, they certainly are small, and I bet they get some good mileage with them.