I see around 7-8mpg at donington.

FWIW I used 74 litres in one track evening.

That was just over 300kms which included the steady motorway cruise up and back.

Combined for the distance was 12.97mpg, and I can see close to 30mpg on a motorway run.

Similar story, 14mpg doing a round trip to silverstone and a few hours on track.
