Self charging hybrids seem the best compromise but sad that only petrol versions available now given cleanliness of current diesels. :
(wouldn't want one, but)... There's plenty of self-charging diesel hybrids around. Their hybrid ability is often hidden though - I guess innovation frightens the vast majority of horses.
for example, have a look at LandRovers, and see if you can spot anything much in the way of info about their propulsion. "Dnnn MHEV" is the closest you'll see for a description of a diesel hybrid.
Will
