I have noticed a significant improvement in economy since the car has travelled more than 10,000km. When new the economy was 6.2l/100km on average and occassionally down to 6.0l/100km. At around 12-13,000km it is relatively easy to achieve sub 6.0l/100km and on occasion down to 5.6l/100km, this is mainly open road, but with it heavily loaded and climate air always on. I don't drive for economy. The figures above are from the trip computer, so actual figures are probably higher. I'm pretty sure I could get 1000km from a tank now, but I don't like to run the tank too close to empty.