After 9 years and almost 70,000 miles I am exchanging my Mk3 SE for a Mk4 Elegance. The true overall figures for the Mk 3 are 69773 miles and 6215.2 litres of E10, mostly from ASDA. This converts to 51.0 mpg. I have never zero’d the B trip, and the averages shown there are 54 mpg and 30 mph.