Since my Fox is growing more and more at my heart, I will probably keep it for more than three years & drive it. So I want to invest a little more money and collect some ideas on how to make the Fox even more economical. So far the following ideas have come up: – Sports air(exchange)filter – ECO-Chip – Aluminium rims (14″-165er) – Light running oil – slightly increased pressure (+0.2 bar) of the tires What do you think? Could you change even more on the Fox to further reduce fuel consumption? I don’t want to make the Fox a rocket. But I would like to have a small petrol sprite saving miracle in the garage.