52.9mpg
My 30 year old son drives a very old Fiat Panda 1.2 petrol. He drives very slowly to maximise the mpg
Last week he borrowed my 2016 XC70D5 220bhp auto to go on a 350 mile trip mostly on the motorway where he said he drove at the same speed as the trucks, about 56mph. The computer showed average 52.9 mpg with an average speed of 39mph, These are figures could only dream about but he was incentivised by agreeing to fill the tank when he got back
He'd never even driven the car before
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