@kezo Your overall mpg is about the same as I achieved recently on a 280 mile journey, starting with a full charge. I put the car in Auto (rather than use up EV miles first) but made sure that I had used up all the EV juice by the end of the journey. I can’t remember what the trip computer said but, as we know, it’s irrelevant when the battery is charged as it takes no account of charge costs. On the return journey, with no charge, economy was 10 mpg worse. Although I worked it out manually, the car trip computer was actually accurate (first time ever 😂).
We have another holiday in a few weeks time, so I’m going to do the same exercise, but thereafter I’m not working out mpg any more as I find it too depressing and too much faff having to factor in charge costs to get an accurate picture. Over a full year I know that miles on EV mode are very cheap. Mid range journeys starting with a full charge are OK, as long as you don’t go over 70 mph – and mpg on any journey with no charge is poor. For my next car I’d like to go back to a trip computer that gives you accurate mpg information!
One thing I have noticed though is that, even though it’s hot, I’m not getting near the quoted 38 mile EV range. Low to mid 30s is about my max, less in the winter.