Fuel consumption S8

[N11LS_J]

Hey guys

Firstly, I know I know, owning a V10 5.2 and asking about fuel consumption???!





I come from a number of performance Audis, so spending time at my local Shell is something im quite accustomed to

My question is, my previous car was a 4.2 V8 RS4, I'm in London and with mostly town driving, i was averaging 19-21mpg

However, in this beast, I'm lucky to get 11-12?!

Is this the norm or do I have some sort of issue?