In my experience (300h F-Sport, 3000km) 50%city, 50% highway (max. 150km/h) with "normal driving style" 7,9l/100km
Only city, 6,9l/100km
Outside city (not highway) 6,2l/100km
May I'm driving too slow, but I think not. Other experience with the same driving style with my RX400h highway+city 11l/100km, city 9,1l/100km, normal road 9,4l/100km.
On highway average speed about 120km/h, max 150km/h, average 9,2 L/100km
Outside city, not highway average speed cca. 72km/h, max 110km/h
BUT!!!!
You have to have experience with hybrid driving style.
The last 300 km was driven by my girlfiend in the city.
She drove more dinamic: just city 8,3l/100km.... thats also not bad, just a bit more...