I have had my ST-3 225 since Jan, I am very happy with it but I could not recommended on Fuel economy, in the cold on short runs we were averaging 18mpg and most of this was my wife pootling about with the kids in the car. We do get around 28mpg on longer runs. However as a family car it works very well the only issues I have with the ST-3 (not ST-2 or 1) is that it is a strictly 4 seater, there is no middle belt and there is only 1 isofix point, I am not sure if this is because it is an ST or because it is an ST-3. Also the rear belts are awkward to fasten with a child seat, again this could be the ST-3. If you want a 5 door then you might have to wait for the right car to come up, it took me 9 months to find the right car! However it is a lot of fun and I enjoy it every time I get in it. When you hear the 5 pot burble you won't care about fuel economy!