What to Expect in turms of MPG

Hi everyone

I am usually more on the P38 Section of this forum but there is possibly at one point in time the chance that I may get my hands on a LR4 HSE V8 and I wanted to know how bad is the mileage with them (or LR3).

With my P38 I am doing on average all over the year 22.99L/100KM shall I expect something better with a LR4?

Does the LR4 / LR3 has the same mileage?

Is this accurate ? Fuel Economy of the 2013 Land Rover LR4

Thanks in advance.