well i used a online converter thing here http://www.fuel-economy.co.uk/calc.shtml and it came back with the below figures...
Fuel Cost: 107.9p
Total Spend: £46
Distance: 370 miles (done 160 so far so estimated total)
Your real-world MPG average is 39.46, covering 370 miles using 9.38 gallons of fuel.
This is the figure I get running my 1.9TDi Sport mainly round town
Better than the Impreza I had which used £30.00 evey 110 miles