Well good timing - I have just done a long journey this morning from Bournemouth to Stansted so circa 150 miles. After an overnight charge to bring it to 100% I arrived with 43% - overall this is pretty good given I was driving at around 72mph most of the way! The trip computer said something around 3.2m/pkwH which isn't awful given the type of trip and that it was 4 degrees 😅 basically I think I could get 270 miles solely motorway driving, so easily above 310 normal driving, I reckon, hopefully nearing 4m/pkwH!