Not much of an article and very few details about the testing.
I bought My PHEV as I got the Canadian Government $2500 incentive which made the PHEV only $2000 more than the HEV. I keep my vehicles for along time and with the price of gas going up and up (in Edmonton, Alberta it just went to $1.36/litre) I know I am going to make that $2000 back in gas savings.
Yes in -28 celcius the engine runs more than using the batteries but it has to heat the cabin some way.
I am very happy with my purchase.
With every vehicle there are "wish it would have" or "wish it didn't do this or that" but every vehicle is like that.