I wondered if that was the response you were setting up…
Based on 50mpg I’d say you’re looking at £31 to get 250 miles in a 520d which is still a lot more than £21.
To get cost parity with the Tesla charging at a Supercharger a 520d would have to hit 75 miles per gallon, which I don’t think it would.
Also good luck refuelling your 520d at home later on, where the Tesla ‘refill’ would be £10.50…
Indeed. My 520D got a laudable 40.32 mpg on average over 2,155 of mostly motorway miles this August. Decent for a big car at speed, but it amounted to >£325 in diesel alone; Assuming I never charged at any of the homes I went to and only used the Tesla supercharger network, it would have cost me £181...
'Against stupidity, the gods themselves struggle in vain' - Schiller.