£1.50 a litre round here. Motorway driving at least 45mpg. So 15p a mile.
Is that £1.50 at motorway prices though? (genuine question, I like comparing apples with apples, it’s easier). However, that does, just, show EVs to be cheaper (skin of teeth here). Honest reality is that if you were to buy an EV run it completely on public, rapid chargers you would pay much more over 3 years than an equivalent petrol car. That’s down to electricity prices being ridiculous right now and public charging still getting clobbered full VAT. Prices have jumped from 28p per litre (on crappy unreliable chargers) to 65p or even more but the network is, mainly, less unreliable for that investment. I’ve seen charges nearing £1 per kWh, which is insane. However, I’ve also seen motorway service stations in remote areas charging 10% more than others.
The thing is, with the range of a petrol / diesel car you wouldn’t need to be re-fueling at a motorway service station. When I had my EV it was costing my company around £24 to fully charge it on the motorway and I was getting a max of 180 miles for that sometimes 130 miles. Prices have increased massively since then.