The Prius is EPA'd close to 50 MPG, some drivers ahve "modified" them to get 100+ MPG (run mostly on electrons, recharge overnight, rarely use gasoline). This is STANDARD programming in EVERY other country in which the Prius is sold, but not here.
Diesel electric hybrid cars could offer ranges near 1,000 miles on a 12 gallon tank, at a 15% price premium over a pure diesel
There are some very powerful factors that may very well keep diesels out of the USA:
-GM, if not for the "350 diesel" that RUINED America's "taste" for diesels, we would not be in this dieselless mess to begin with.
-Enviro Natzis who want a diesel to exhaust cleaner air than they intake. And are not smart enough to know that 80% of ALL "engine" pollution comes from 2% of the dirtiest units.
-Kalifornia and the "North Eastern Commonwealth" who DO NOT want ANY diesels at all. Togather they account for nearly 20%-25% of the ENTIRE automotive market in the USA. Would you try to market a vehicle (diesel) where 25% of the total market could not leagally own your produce? No.
-EPA, the clueless EPA and their utter unwillingness to MANDATE decent diesel fuel. Europeans have been using ULS Diesel (Ultra Low Sulpher) for many years, this alone will reduce exhaust emissions significantly on ALL diesels. BTW, this applies to gasoline too, but no one is talking about that.
-CAFE regulations that SUCK. Do the officials of the EPA think Americans are STUPID? Lets see, mandate emissions reductions (at IDLE), which cause INCREASED fuel consumtion (more overall emissions) over a vehicle's life. Let's be SMART, take any vehicle and make it more efficient at any emissions standard, and you REDUCED overall emissions. If car "A" emits 4 tons/year of CO2 and gets 20 MPG while meeting EPA emissions specs, if you MANDATED 22 MPG it would reduce CO2 emissions by 0.4 tons/year (3.6 tons/year) WITHOUT making for a more expensive engine!
-Emissions and fuel economy have NOTHING to do with "power". Example, Corvete: 350+ HP, 0-60 is under 6s, EPA highway rating of 29 MPG (many get over 30 with a m/t).
Until the EPA gets it's own head out of the collective arses of the "Big Three", we are STUCK with the BS system we have. Oh, the EPA would also need to "get some brains", and apply *some* level of common sense to their decisions.
Do YOU think that is likely? I do not.