I wonder how this compares to the OPOC engine that is being developed by the same guy who did the TDI for VW. Check out the nifty flash animation: http://www.ecomotors.com/ . I think the new found focus on economy is starting to (finally) spur some innovation in this area.
Very weak. 40 miles on battery and then ~ 50mpg for the remaining 10 miles and you get the stupid mileage figure. Yes you can average 230mpg over the first 50 miles you drive on a fresh charge. Of course driving just another 10 miles would drop the mileage figure substantially. I guess it's time to have two mileage ratings. The first would be gallons per 100 miles with a fully charged battery, the 2nd would be gallons per 100 miles on a fully depleted battery.
I think it will be a lot harder for these researchers to go back and change their headlines than it has been for them to modify the historical temperature data. In a few years time we will be able to look back at these headlines and have a good laugh at what people were willing to say just to keep their funding.