That is 11.3L/100km
I just drove from Sydney to Albury on Sunday in the M35. Boot full, 4 people in side and 2 mountain bikes on the roof rack. Set the cruise control on 118kmh and sat back and relaxed. Upto Yass it was at 11.4L/100km as Sydney and upto Yass was cool (21), then it got a lot hotter past Yass (30) and economy went down to 11.6L/100km.
I know I could get at least 0.6L/100km better without the bikes on top of the car.
This was the best long distance drive I have ever done, car did it effortlessly, kids did not argue because the had their DVD headrest each and I got to listen to my music. Blissssss pure bliss. I love my car.