The wife and I got back yesterday with our smart. Put on 300+ miles on the way home. When we filled up in town and checked the mileage, it came out to 44/gallon! I wasn't expecting that high for the first fill up and with driving the bulk of the trip with the flow of traffic around 75-80mph. The ride is quite smooth, there is no engine noise, it's amazing! We got plenty of looks and several people approached and inquired about the little marvel. For a change, I can't wait to go to work on Monday!