It’s more like £6.62 a gallon (4.5456 litres = 1 gallon)
You are right and that makes it even worse, but in my defence I went by this
United Kingdom gasoline prices, 04-Mar-2024 | GlobalPetrolPrices.com
We show Octane-95 gasoline price data for the United Kingdom from 2014-03-24 to 2024-03-04. The average gasoline price during that period is GBP 1.28 per liter with a minimum of GBP 1.01 on 2016-02-01 and a maximum of GBP 1.92 on 2022-07-04.
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