Fuel is in litres but cars are in miles per gallon, I guess nobody wanted to do miles per litre or some unhinged calculation

I'll drive 80 miles to walk 25 km to climb mountains because they are over 3000ft high (Munros) even though I think about the heights on the mountains in metres!

It has been a long time since fuel was sold here in the UK in gallons, but most cars still are spoken of in terms of MPG (miles driven per gallon of fuel). There are steps to move this to L per 100km - but most people here still use MPG.

We also use Pints in pubs, which are a different size to US pints.

The standard cup is not the same size between us and uk Sumthin sumthin breakfast cup