Comment Re:IMHO totally losing liquid fuel capability is b (Score 1) 336
Plugin Hybrids aren't "traditional hybrids, with a major engine integrated into the transmission, normally providing the motive power". That vastly misrepresents how they work today.
I may be extrapolating from the one I own, but the whole *point* of a plug-in hybrid is that it's primarily an electric car, and only uses the gas engine when the battery is dead (or if you floor it, or if the "car-brain" determines that it needs to run to keep the oil and gas fresh, or to more efficiently create heat in the winter).
Just commuting to/from work, I use *zero* gas most days in a plugin hybrid. My record so far is 3500 miles between fill-ups. That's about 3200 miles pure electric, and about 200 miles with the engine running. And that tank only ended because I filled up to go on a road trip.
Once the battery is "dead" with "0 miles" left, the car does drive like a traditional hybrid. The engine turns off opportunistically, just like a regular hybrid.
And yes, the car does have some complexity from both systems, *but* it is also simpler in other ways. The more complex transmission reduces other complexity... there's no reverse gear, for example (it just runs one of the electric motors in reverse). The gas engine itself can run on an Atkinson cycle that is more efficient, and can run in the RPM ranges that are always optimal, sending extra power to charge the battery at any time. Because the gas engine runs a lot less, all the parts associated with running the engine (everything from fuel pumps, injectors, etc. to the exhaust system and all the sensors there) get used far less, and *should be* cheaper to maintain in the long run than a full gas engine.
And even though the charging system and bigger battery adds more weight than a traditional hybrid, in practice the total lifetime ecological impact is less than a traditional hybrid or a pure gas vehicle.
Plugin Hybrids are also generally at much more attractive price points than pure electric vehicles, today. There are plugin hybrids in almost every vehicle segment, including ones where there are zero pure electrics that you can buy today, like minivans.
TL;DR: Plugin hybrids are not perfect, but they are better in almost every way than traditional gas engines or traditional hybrids for efficiency and long-term maintenance, are better than pure electrics on long trips (until the country gets ubiquitous charging infrastructure) and purchase price (in practice).