My costs as an example
Sept £12.42 195kWh
Oct £14.49 253kWh
Nov £17.72 256kWh
Dec £8.16 115kWh.
Jan £22.08 292kWh
Feb £16.01 219kWh
Mar £12.43 187kWh
Top man Mark, that indicates an average of around 3.6 miles/kWh at 800 miles/month so pretty reasonable for the winter months.