The hybrid vs diesel test will always have slight difference due to different vehicles ,not just slipstream effect etc. . Bottom line is the hybrid used about 12 % fewer litres of a cleaner fuel, on that test route. This should be better for the environment. (But net yet good enough , plus hidden environmental costs mining for battery materials etc etc)
But ,at the time of the test, diesel still worked out cheaper ,in purely financial terms. It was cheaper, or a similar price, to petrol in most european countries. And diesel may use less fuel at high motorway speeds.
Its currently more expensive than petrol in most european countries , and that , combined with increasingly being
excluded from emission zones, is another nail in the diesel coffin.
I was once a big fan of diesel cars. But I doubt I will buy another. I am now an electric fan (
) but must remain hybrid until range is sufficient for my needs.
I think the uk Government are going to make electric scooters legal, so maybe one of those with a small trailer or paniers for shopping? Or maybe something like my avatar photo ( which is Lady Muck-Voltermore in Cambodia)