There have been so many posts on this forum about bad fuel consumption, this one is the opposite. My GMA 170 TCT now has 11 300 miles on the clock so it should be properly run in by now. In mixed driving I average upwards of 35 mpg very easily. On the open road, if I behave myself and stick to around 80 mph I manage 42 mpg without trying very hard. My previous car was an Astra 1.6 Sport and if I was lucky I'd get 25 mpg in mixed driving and 29 mpg on the open road on a good day. In my book that makes my Giulietta's consumption excellent. Granted, it can get heavy quite quickly if you nail it but if treated carefully I find the MultiAir engine incredibly efficient. A nice bonus is the fact that it is smooth, free-revving and it sounds good, very much unlike the Astra. The Giulietta feels stronger too, probably due to better gear ratios and it is quite a bit lighter than the Astra. I really rate this engine, I haven't come accross anything in its class that does it better.