@John Arnold
Just to correct some comments that may be misleading.
These are the official MG range and efficiency data.
View attachment 572
Range 163 / efficiency 3.3
Battery size given earlier on this page is 44.5 We empirically know 42.5 kWh of battery is available for use.
I note you are being encouraged to multiple your accumulated efficiency by battery capacity to give your range.
Unfortunately this is misleading and disinformation.
As you can see from MG's own data multiplying 3.3 by 44.5 or 42.5 will never give you 163.
This is because the GOM does not work like that.
Unfortunately you will find some with a thousand and one theories about fixed GOM formulae and various multiplication and division formulae about the GOM.
Try not to worry your head about these GOM formulae. GOMs are not designed to work like that. In fact the GOM is specifically designed not to use the efficiency data from the accumulated journeys because it renders it inaccurate. I have commented at length on this issue in the past so I would not say much more other than to say the GOM is a forward looking estimator and answers the question how far you are likely to travel with the charge remaining in your battery if your current driving conditions remain unchanged. It is based solely on a specific portion of your recent travel data. It is self updating and changes as soon as your driving condition changes. So far as you understand the above and that the GOM is not trying to tell you how far you will travel "come what may", you will be OK.
Some are confused because they do not accept how the GOM is designed to work and they wish the GOM to show a fixed mileage on full charge from which they may subtract the distance they have travelled and get the GOM showing exactly the remaining no matter the driving conditions. Unfortunately electric vehicles batteries are affected by driving condition and other ciurrent factors in a non linear manner so that sort of approach is not possible.
It however does not stop those who are determined push their private multiplication formulae. They worked up their own private theory that at full charge the GOM will show a fixed mileage which is accumulated efficiency multiplied by battery capacity. Well this is not true at all.
All the GOM tells you is that you may be able to drive A or B miles if recent driving conditions prior to the full charge remains the same for your onward journey.
You will find that with good efficient driving your efficiency will easily go above 3.3 mile/kWh but may find it difficult to manage more than 163 miles on a single charge in normal driving conditions especially if your daily routine includes motorway driving.
Just watch out for those with private theories which is not backed by EV industry data, or manufacturer's guidance/data or reviewer and user summaries. These private theories tend to be almost always wrong.