That's nowt,
Over in Germany we have 102 ron ultimate petrol instead of your Optimax 99 ron.
It cost's me over 100Euro to fill my coupe from the red light almost 55 litres. It's 1.67 a liter
Well it did until I got my coupe passed the BFG test (armed forces version of the TUV)
Now I have my fuel ration card I get 120litres of the same fuel for 102Euro so around 90p a litre now