I'm a bit above 9 (9.3) l/100 km after almost 2300km, with an average of 80/20 % city/highway but mostly in Eco mode. The book says not to rev the car above 4k RPMs in the first 2000km, so Eco mode seemed the safest way to achieve that.
The highway driving is a bliss in this car, I'm averaging 6-7l/100 km at 130 km/h. Now that the temperatures have dropped, I expect to go higher, but over the summer, the consumption should be below 9 (if I keep the same driving style...
Make sure to put only Premium gas in it and you will get around 520 km/tank in winter (mostly city driving).
2016 Imperial Blue 428xi GC, Ivory White, M Package
2013 Black Sapphire 328xi Sport, Coral Red, HUD, Bth Package, Driving Assist Package, Exec Package, Premium Package (Retired)