40 miles is next to nothing. I think at this level hybrids are only a kind of greenwashing. I got such a hybrid as company car. And in the 2y I never was loading the battery on a el. charger, I always loaded it, if at all, while driving the combustion engine as this was simply way more comfortable.
And there are calculations, if you take all the costs of the car, not only the fuel, but also the rare earth metals needed for the battery, and the energy needed to get the power for the battery, and the limited possibility to sell used e-cars, if you take all into account, then they are not even more environmentally better than modern combustion engine cars.
It is a just a myth, made to generally reduce individual traffic in future. First to change to e-cars and then make the elect. power so expensive that it will be a luxury to drive cars.